Listing 4825 chemical categories

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Name	ChemOnt ID	Description
Tacaman alkaloids	CHEMONTID:0002759	Alkaloids containing the pentacyclic tacaman skeleton, which consists of a pyrido[1,2-a]indole fused to a quinolizine. Tacaman alkaloids are obtained from a precursor to a pseudoaspidospermidine (type II skeleton) derivative, by the formation of new bonds at C-20/C-3 and C-140/C-17.
Tametralines	CHEMONTID:0000049	Compounds containing a tametraline moiety, which consists of a tetrahydronaphthalene linked to a phenyl group to form N-methyl-4-phenyl-1,2,3,4-tetrahydronaphthalen-1-amine skeleton.
Tannins	CHEMONTID:0000238	Naturally occurring polyphenols which be categorized into four main classes: hydrolyzable tannin (based on ellagic acid or gallic acid), condensed tannins (made of oligomeric or polymeric proanthocyanidins), complex tannins (made of a catechin bound to a gallotannin or elagitannin), and phlorotannins (oligomers of phloroglucinol).
Tanshinlactones and derivatives	CHEMONTID:0002549	Oxasteroids with a structure containing an C-17 steroid skeleton, with two oxygen atoms replacing carbon atoms, and one C=O group. They all have one nitrogen atom at the 15-position. Some tanshinlactones have the second oxygen atom at the 11-position and a C=O group at the 12-position. Others have the second oxygen atom at the 12-position and a C=O group at the 11-position.
Tanshinones, isotanshinones, and derivatives	CHEMONTID:0002548	A group of abietane-type norditerpenoid quinones.
Taraxastane, ursane, and bauerane triterpenoids	CHEMONTID:0002886	Triterpenoids with a structure based on either the taraxastane, ursane, or bauerane skeleton. These are obtained by methyl migration in ring E of the oleanane backbone.
Taraxerane, multiflorane, glutinane and friedelane triterpenoids	CHEMONTID:0002887	Triterpenoids with a structure based either on the taraxerane, the multiflorane, the glutinane, or the friedelane skeleton. These compounds arise upon rearrangement of the oleanane skeleton.
Taurinated bile acids and derivatives	CHEMONTID:0001159	Bile acid derivatives containing a taurine conjugated to the bile acid moiety.
Taxanes and derivatives	CHEMONTID:0000676	Diterpenoids with a structure based either on the taxane skeleton, or a derivative thereof. In term of phytochemistry, several derivatives of the taxane skeleton exist: 2(3->20)-abeotaxane, 3,11-cyclotaxane, 11(15->1),11(10->9)-abeotaxane, 3,8-seco-taxane, and 11(15->1)-abeotaxane, among others. More complex skeletons have been found recently, which include the taxane-derived [3.3.3] propellane ring system.
Tazettine-type amaryllidaceae alkaloids	CHEMONTID:0004124	Amaryllidaceae alkaloids derived from the haemanthamine-type alkaloids, which are characterized as a linkage between C6 and C11 by an oxygen atom to form a [3,4-g]benzopyran framework.
Tellones	CHEMONTID:0002426	Organotellurium compounds with the general formula RC(=Te)R' (R,R\" = organyl).
Telluraldehydes	CHEMONTID:0002477	Organotellurium compounds with the general formula RC(=Te)H (R = organyl).
Telluric acids	CHEMONTID:0002481	Organic acids containing a telluric acid group.
Telluric acids and derivatives	CHEMONTID:0002480	Organic acids containing a telluric acid group or a derivative thereof.
Tellurinohydrazides	CHEMONTID:0003161	Organotellurium compounds with the general formula RTe(O)-NHNH2.
Tellurinohydrazonic acids	CHEMONTID:0003115	Organic acids with the general formula RTe(OH)NN (R=organyl).
Tellurinyl compounds	CHEMONTID:0003122	Organotellurium compounds with the general formula RTe(=O)R' (R = organyl).
Tellurocarbonyl compounds	CHEMONTID:0003124	Organotellurium compounds with the general formula RC(=Te)R' (R= organyl, R' = H, organyl).
Telluroethers	CHEMONTID:0002431	Organic compounds containing a telluroether group, with the general formula RTeR' ( where R, R' are not H atoms).
Tellurols	CHEMONTID:0002425	Analogues of alcohols and phenols where the oxygen is replaced by a tellurium atom.
Tellurones	CHEMONTID:0002479	Organotellurium compounds with the general formula R[Te](R')(=O)=O (R,R' = organyl).
Telluronohydrazides	CHEMONTID:0003160	Organotellurium compounds with the general formula R-TeO2-NHNH2.
Telluronyl compounds	CHEMONTID:0003121	Orgnotellurium compounds with the general formula R[Te](R')(=O)=O (R = organyl, R' not O-atom).
Telluroxides	CHEMONTID:0002482	Organotellurium compounds R[Te](R')=O (R,R' = organyl).
Terminal alkynes	CHEMONTID:0002438	Alkynes featuring a carbon substituent on one acetylenic carbon, and a hydrogen on the other carbon.
Terpene glycosides	CHEMONTID:0002049	Prenol lipids containing a carbohydrate moiety glycosidically bound to a terpene backbone.
Terpene lactones	CHEMONTID:0001283	Prenol lipids containing a lactone ring.
Terphenyls	CHEMONTID:0002042	Polycyclic aromatic compounds containing a terphenyl skeleton, which consists of a benzene ring substituted with two phenyl groups. Isomers of terphenyl include m-terphenyls (1,3-diphenylbenzenes), o-terphenyls (1,2-diphenylbenzenes), p-terphenyls (1,4-diphenylbenzenes).
Tertiary alcohols	CHEMONTID:0001670	Compounds in which a hydroxy group, -OH, is attached to a saturated carbon atom R3COH (R not H ).
Tertiary alkylarylamines	CHEMONTID:0002454	Tertiary amines where the nitrogen atom is linked to at least one alkyl group and at least one aryl group.
Tertiary amines	CHEMONTID:0002452	Amines having the nitrogen atom linked to exactly three hydrocarbyl groups.
Tertiary arsines	CHEMONTID:0004237	Organoarsenic compounds with a trisubstituted arsenic atom. They have the general formula R[As](R')R\", R,R',R\"=organyl group.
Tertiary carboxylic acid amides	CHEMONTID:0001664	Compounds containing an amide derivative of carboxylic acid, with the general structure RN(R1)C(R2)=O (R1-R2 any atom but H).
Tetraalkylammonium salts	CHEMONTID:0004225	Organonitrogen compounds containing a quaternary ammonium substituted with four alkyl chains.
Tetraalkylphosphonium compounds	CHEMONTID:0004327	Organophosphorus compounds that contain a tetravalent phosphorus atom substituted to four alkyl chains.
Tetraalkylphosphonium halides	CHEMONTID:0004328	Organophosphorus compounds that contain an halogen atom, and a tetravalent phosphorus atom substituted to four alkyl chains.
Tetraalkyltins	CHEMONTID:0004347	Tetraorganotin compounds where the tin atom is linked to exactly four alkyl groups.
Tetracarboxylic acids and derivatives	CHEMONTID:0002966	Carboxylic acids containing exactly four carboxyl groups.
Tetracenequinones	CHEMONTID:0000155	Polyaromatic hydrocarbon derivatives containing a tetracyclic cycle made up of four linearly fused benzene rings, one of which bears two ketone groups at position 1 and 4.
Tetracyclines	CHEMONTID:0000181	Polyketides having an octahydrotetracene-2-carboxamide skeleton, substituted with many hydroxy and other groups.
Tetrahydrofolic acids	CHEMONTID:0002954	Heterocyclic compounds based on the 5,6,7,8-tetrahydropteroic acid skeleton conjugated with at least one L-glutamic acid unit.
Tetrahydrofolic acids and derivatives	CHEMONTID:0002618	Heterocyclic compounds based on the 5,6,7,8-tetrahydropteroic acid skeleton conjugated with at least one L-glutamic acid unit (or a derivative thereof) .
Tetrahydrofuran lignans	CHEMONTID:0001604	Lignans with a structure that contains a tetrahydrofuran ring that arises from the joining of the two phenylpropanoid units.
Tetrahydrofurans	CHEMONTID:0002648	Heterocyclic compounds containing a saturated, aliphatic, five-membered ring where a carbon is replaced by an oxygen.
Tetrahydroisoquinolines	CHEMONTID:0002955	Tetrahydrogenated isoquinoline derivatives.
Tetrahydropteroic acids	CHEMONTID:0003045	Heterocyclic compounds based on the 5,6,7,8-tetrahydropteroic acid skeleton(or a derivative thereof) .
Tetrahydropteroic acids and derivatives	CHEMONTID:0003042	Heterocyclic compounds based on the 5,6,7,8-tetrahydropteroic acid skeleton (or derivative thereof).
Tetrahydropyridines	CHEMONTID:0001934	Derivatives of pyridine in which two double bonds in the pyridine moiety are reduced by adding four hydrogen atoms.
Tetrahydroxy bile acids, alcohols and derivatives	CHEMONTID:0001110	Prenol lipids structurally characterized by a bile acid or alcohol which bears four hydroxyl groups.
Tetralins	CHEMONTID:0000048	Polycyclic aromatic compounds containing a tetralin moiety, which consists of a benzene fused to a cyclohexane.
Tetraorganoalkoxyarsoranes	CHEMONTID:0004284	Organoarsenic compounds containing a pentavalent arsenic compound that is by three organic groups, alkoxy groups.
Tetraorganoarsonium salts	CHEMONTID:0004238	Organoarsenic compounds, where the arsenic atom is tetrasubstituted by organic groups. They have the general structure R4[As+]X-, X=any atom but H.
Tetraorganolead compounds	CHEMONTID:0004289	Compounds containing a lead compound bonded to four carbon atoms.
Tetraorganostibonium salts	CHEMONTID:0004249	Organoantimony compounds containing an antimony cation that is tetrasubstituted with four organic groups, and which interacts with an anion.
Tetraorganotin compounds	CHEMONTID:0004348	Compounds containing a tin compound bonded to exactly four carbon atoms.
Tetrapyrroles and derivatives	CHEMONTID:0001455	Polycyclic aromatic compounds containing four pyrrole rings joined by one-carbon units linking position 2 of one pyrrole ring to position 5 of the next.
Tetrasubstituted imidazoles	CHEMONTID:0002632	Imidazoles in which the imidazole ring is substituted at exactly four different positions.
Tetraterpenoids	CHEMONTID:0001554	Terpenoid molecules containing 10 consecutively linked isoprene units.
Tetrathianes	CHEMONTID:0002050	Organic compounds containing a tetrathiane ring, which is a six-member saturated aliphatic ring made up of four sulfur atoms and two carbon atoms.
Tetrazines	CHEMONTID:0000092	Organic compounds containing a tetrazine ring, which is a six-membered aromatic heterocycle made up of four nitrogen atoms and a two carbon atoms.
Tetrazoles	CHEMONTID:0000111	Organic compounds containing a tetrazole ring, which is a five-member aromatic heterocycle made up of four nitrogen atoms and a one carbon atom.
Tetrazolidines	CHEMONTID:0001842	Organic compounds containing a tetrazolidine ring, which is a five-member saturated aliphatic heterocycle made up of four nitrogen atoms and a one carbon atom.
Tetrazolines	CHEMONTID:0001080	Organic compounds containing a tetrazoline ring, which is a five-member unsaturated aliphatic heterocycle made up of four nitrogen atoms, a one carbon atom, and one double bond.
Tetrodotoxins	CHEMONTID:0001639	Compounds structurally characterized by the presence of the tetrodotoxin skeleton, which is based on 5,7-(epoxymethanooxy)quinazolin-10-olate moiety.
Tetroses	CHEMONTID:0001496	Monosaccharides with a sugar unit made up of 4 atoms.
Thia fatty acids	CHEMONTID:0001423	Fatty acid derivatives obtained by insertion of a sulfur atom at specific positions in the chain.
Thiadiazinanes	CHEMONTID:0003094	Organic heterocyclic compounds containing a six-membered saturated heterocycle with two nitrogen, one sulfur, and three carbon atoms.
Thiadiazines	CHEMONTID:0000224	Cyclic organic compounds containing a thiadiazine ring, which is a six-member unsaturated heterocycle made up of one sulfur atom and two nitrogen atoms.
Thiadiazole sulfonamides	CHEMONTID:0002326	Heterocyclic compounds containing a thiazole ring substituted by at least one sulfonamide group.
Thiadiazoles	CHEMONTID:0000093	Cyclic organic compounds containing a thiadiazole ring, which is a five-membered aromatic heterocycle made up of one sulfur atom and two nitrogen atoms.
Thiadiazolidines	CHEMONTID:0002015	Cyclic organic compounds containing a thiadiazole ring, which is a five-member saturated aliphatic heterocycle made up of one sulfur atom and two nitrogen atoms.
Thiadiazolines	CHEMONTID:0002016	Cyclic organic compounds containing a thiadiazoline ring, which is a five-member unsaturated aliphatic heterocycle made up of one sulfur atom and two nitrogen atoms.
Thiaergolines	CHEMONTID:0001784	Ergoline analogues, obtained by replacing the oxygen atom in the indole moiety (of the ergoline backbone) by a sulfur atom.
Thiamine phosphates	CHEMONTID:0001287	Thiamine derivatives in which the hydroxyl group of the ethanol moiety is substituted by a phosphate group.
Thiamines	CHEMONTID:0001285	Compounds containing a thiamine moiety, which is structurally characterized by a 3-[(4-Amino-2-methyl-pyrimidin-5-yl)methyl]-4-methyl-thiazol-5-yl backbone.
Thianes	CHEMONTID:0001894	Heterocyclic compounds containing a saturated six-member ring with five carbon atoms and one sulfur atom.
Thianthrenes	CHEMONTID:0002803	Organic compounds containing a thianthrene moiety. Thianthrene is a tricyclic ring system that consists of two benzene rings fused to each other through a 1,4-dithiin ring.
Thiasteroids and derivatives	CHEMONTID:0002383	Steroid derivatives in which one carbon atom in the steroidal skeleton has been substituted with a sulfur atom.
Thiatriazoles	CHEMONTID:0002561	Heteroaromatic compounds containing a thiatriazole ring, which is a five-membered aromatic ring with one sulfur atom, three nitrogen atom, and a carbon atom.
Thiazepines	CHEMONTID:0000068	Heterocyclic compounds containing a seven-member aromatic ring with five carbon atoms, one sulfur atom, and one nitrogen atom.
Thiazetidines	CHEMONTID:0001881	Heterocyclic compounds containing a saturated four-member ring with two carbon atoms, one sulfur atom, and one nitrogen.
Thiazinanes	CHEMONTID:0001884	Heterocyclic compounds containing a saturated six-member ring with four carbon atoms, one sulfur atom, and one nitrogen.
Thiazinanethiones	CHEMONTID:0001919	Heterocyclic compounds containing a thioketone group conjugated to a saturated six-member ring with four carbon atoms, one sulfur atom, and one nitrogen.
Thiazines	CHEMONTID:0000094	Heterocyclic compounds containing an aliphatic unsaturated six-member ring with four carbon atoms, one sulfur atom, and one nitrogen. Isomers include 1,2-thiazines, 1,3-thiazines, and 1,4-thiazines.
Thiaziridines	CHEMONTID:0000493	Organic heterocyclic compounds with a 3-membered saturated ring with a thioether group and an amine group in the 1 and 2 positions, respectively.
Thiazolecarboxamides	CHEMONTID:0002008	Heterocyclic compounds containing a thiazole ring which bears a carboxylic acid amide group.
Thiazolecarboxylic acids	CHEMONTID:0002418	Heterocyclic compounds containing a thiazole ring which bears a carboxylic acid group.
Thiazolecarboxylic acids and derivatives	CHEMONTID:0002007	Heterocyclic compounds containing a thiazole ring which bears a carboxylic acid group (or a derivative thereof).
Thiazoles	CHEMONTID:0000095	Heterocyclic compounds containing a five-member aromatic ring made up of one sulfur atom, one nitrogen, and three carbon atoms.
Thiazolidinediones	CHEMONTID:0000228	Heterocyclic compounds containing a thiazolidine ring which bears two ketone groups.
Thiazolidines	CHEMONTID:0000226	Heterocyclic compounds containing a five-member saturated aliphatic ring with one nitrogen atom, one sulfur atom, three carbon atoms.
Thiazolidinethiones	CHEMONTID:0001923	Heterocyclic compounds containing a thiazolidinethione ring which bears one thioketone group.
Thiazolidinones	CHEMONTID:0000227	Heterocyclic compounds containing a thiazolidinone ring which bears one ketone group.
Thiazolines	CHEMONTID:0000229	Heterocyclic compounds containing a five-member unsaturated aliphatic ring with one nitrogen atom, one sulfur atom, three carbon atoms.
Thienamycins	CHEMONTID:0002362	Beta-lactam antibiotics that differ from penicillins in having the thiazolidine sulfur atom replaced by carbon, the sulfur then becoming the first atom in the side chain.
Thieno[2,3-d]pyrimidine glycosides	CHEMONTID:0003748	Nucleosides or derivatives thereof that consist of a thieno[2,3-d]pyrimidine ring system that is N-glycosidically linked to a ribose or deoxyribose.
Thieno[3,4-c]pyridazines	CHEMONTID:0003353	Organic heterocyclic compounds consisting of a thieno[3,4-c]pyridazine moiety. Thieno[3,4-c]pyridazine is a bicyclic compound made up of a thiophene ring fused to a pyridazine ring so that the sulfur atom and the two nitrogen atoms are at the 1-, 5-, and 6-position, respectively.
Thieno[3,4-d]pyridazines	CHEMONTID:0003354	Organic heterocyclic compounds consisting of a thieno[3,4-d]pyridazine moiety. Thieno[3,4-d]pyridazine is a bicyclic compound made up of a thiophene ring fused to a pyridazine ring so that the sulfur atom and the two nitrogen atoms are at the 1-, 4-, and 5-position, respectively.
Thienobenzoxepines	CHEMONTID:0002573	Compounds containing a benzoxepine fused to a thiophene ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom.
Thienodiazepines	CHEMONTID:0002313	Heteropolycyclic containing a thiophene ring fused to a diazepine ring. Thiophene is 5-membered ring consisting of four carbon and one sulfur atoms. Diazepine is a 7-membered ring consisting of five carbon and two nitrogen atoms.
Thienoimidazoles	CHEMONTID:0000243	Heterocyclic compounds containing a thiophene ring fused to an imidazole ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Imidazole is 5-membered ring consisting of three carbon and two nitrogen centers at the 1- and 3-positions.
Thienoimidazolidines	CHEMONTID:0001446	Heterocyclic compounds containing a thiophene ring fused to an imidazolidine ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Imidazolidine is 5-membered saturated ring of three carbon atoms, and two nitrogen centers at the 1- and 3-positions.
Thienopyrans	CHEMONTID:0001965	Heterocyclic compounds containing a thiophene ring fused to a pyran ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Pyran a six-membered heterocyclic, non-aromatic ring, made up of five carbon atoms and one oxygen atom and containing two double bonds.
Thienopyridazines	CHEMONTID:0003352	Organic aromatic compounds containing a thiophene ring fused to a pyridazine ring. A thiophene is a five-member aromatic ring with one sulfur and four carbon atoms, while a pyridazine is a six-membered aromatic ring with two adjacent nitrogen atoms and four carbon atoms.
Thienopyridines	CHEMONTID:0000344	Heterocyclic compounds containing a thiophene ring fused to a pyridine ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Pyridine is a 6-membered ring consisting of five carbon atoms and one nitrogen center.
Thienopyrimidines	CHEMONTID:0002020	Heterocyclic compounds containing a thiophene ring fused to a pyrimidine ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions.
Thienopyrroles	CHEMONTID:0001833	Heterocyclic compounds containing a thiophene ring fused to a pyrrole ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Pyrrole is 5-membered ring consisting of four carbon atoms and one nitrogen atom.
Thienoquinolines	CHEMONTID:0001896	Heterocyclic compounds containing a thiophene ring fused to a quinoline. Quinoline or benzo[b]pyridine is a bicyclic compound that consists of benzene fused to a pyridine.
Thienothiazines	CHEMONTID:0001928	Heterocyclic compounds containing a thiophene ring fused to a thiazine. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Thiazine is a 6-membered ring consisting of four carbon, one nitrogen and one sulfur atoms.
Thienothiazoles	CHEMONTID:0001929	Heterocyclic compounds containing a thiophene ring fused to a thiazole. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Thiazole is a 6-membered ring that contains both sulfur and nitrogen.
Thienothiophenes	CHEMONTID:0004193	Organic compounds containing two thiophene rings fused to each other.
Thiepanes	CHEMONTID:0000003	Organic compounds containing a heptane ring in which one carbon atom is replaced by a sulfur atom.
Thiepins	CHEMONTID:0000096	Heterocyclic compounds containing an unsaturated seven-member heterocycle, with six carbon atoms and one sulfur atom.
Thietanes	CHEMONTID:0000359	Heterocyclic compounds containing a saturated four-member ring with three carbon atoms and one sulfur atom.
Thietes	CHEMONTID:0000360	Heterocyclic compounds containing an unsaturated aliphatic four-member ring with three carbon atoms, one sulfur atom, and one double bond.
Thiiranes	CHEMONTID:0000377	Heterocyclic compounds containing a saturated three-member ring with two carbon atoms and one sulfur atom.
Thiirenes	CHEMONTID:0002675	Compounds containing a thriirene ring, an unsaturated three-membered ring made up of two carbon atoms and a sulfur atom.
Thio-lactosylceramides	CHEMONTID:0003606	Glycosphingolipids with a structure containing a ceramide skeleton that is S-glycosidically linked to a lactose moiety.
Thio-linked disaccharides	CHEMONTID:0004100	Compounds containing two carbohydrate moieties linked to each to each other through a thioglycosidic bond.
Thioacetals	CHEMONTID:0001187	Organic compounds containing either the monothiacetal functional group (R2C(OR')(SR')) or the dithioacetal (R2C(SR')2) functional group .
Thioaldehyde s-oxides	CHEMONTID:0002251	Compounds having the general structure RC(=S=O)H.
Thioaldehydes	CHEMONTID:0001188	An organic compounds in which the oxygen of an aldehyde has been replaced by divalent sulfur, RC(=S)H. Thioaldehydes interconvert with thioketones.
Thioamide-S-oxides	CHEMONTID:0003076	Organic compounds with the general formula RC(N)=[S+][O-] (R = organyl).
Thioamide-S,S-dioxides	CHEMONTID:0003077	Organic compounds with the general formula RC(N)=[S+]([O-])(=O) (R = organyl).
Thioamides	CHEMONTID:0000510	Organic compounds containing the functional group with the general structure R-CS-NR'R, where R, R', and R are organic groups.
Thioanisoles	CHEMONTID:0000288	Organic compounds in which the oxygen of an anisole has been replaced by a sulfur.
Thiobarbituric acid derivatives	CHEMONTID:0001122	Organic compounds containing a 2-thioxodihydropyrimidine-4,6(1H,5H)-dione skeleton.
Thiobenzoic acids and derivatives	CHEMONTID:0002361	Organic compounds containing thiobenzoic acid or a derivative thereof.
Thiocarbamate salts	CHEMONTID:0004428	Salts of thiocarbamic acids.
Thiocarbamic acid bromides	CHEMONTID:0003432	Organic compounds containing a functional group with the general structure BrC(=S)N(R1)R2 (R1, R2=H, alkyl, aryl).
Thiocarbamic acid chlorides	CHEMONTID:0003435	Organic compounds containing a functional group with the general structure ClC(=S)N(R1)R2 (R1, R2=H, alkyl, aryl).
Thiocarbamic acid derivatives	CHEMONTID:0001368	Organic compounds containing a functional group with the general structure OC(=S)NR2 or SC(=O)NR2.
Thiocarbamic acid esters	CHEMONTID:0001190	Organic compounds containing a functional group with the general structure R1OC(=S)N(R2)R3 (R1=alkyl, aryl; R2,R3=H, alkyl, aryl).
Thiocarbamic acid fluorides	CHEMONTID:0003434	Organic compounds containing a functional group with the general structure FC(=S)N(R1)R2 (R1, R2=H, alkyl, aryl).
Thiocarbamic acid halides	CHEMONTID:0001191	Organic compounds containing a functional group with the general structure R1C(=S)N(R2)R3 (R1=halogen; R2,R3=H, alkyl, aryl).
Thiocarbamic acid iodides	CHEMONTID:0003433	Organic compounds containing a functional group with the general structure IC(=S)N(R1)R2 (R1, R2=H, alkyl, aryl).
Thiocarbamic acids	CHEMONTID:0001507	Organic compounds containing a functional group with the general structure HOC(=S)N(R1)R2 (R=halogen; R1,R2=H, alkyl, aryl).
Thiocarbonic acid diesters	CHEMONTID:0001197	Organic compounds containing a diester derivative of thiocarbonic acid, with the general formula ROC(=S)OR' (R,R'=alkyl, aryl).
Thiocarbonic acid ester halides	CHEMONTID:0001195	Organic compounds containing a diester derivative of thiocarbonic acid, with the general formula XOC(=S)OR (X=F, I, Cl, Br; R=alkyl, aryl).
Thiocarbonic acid monoesters	CHEMONTID:0001196	Organic compounds containing a monoester derivative of thiocarbonic acid, with the general formula HOC(=S)OR (R=alkyl, aryl).
Thiocarbonyl compounds	CHEMONTID:0001198	Organic compounds containing a functional group with the general structure R1C(=S)R2 (R1, R2=H, alkyl, aryl).
Thiocarbonyl s-imides	CHEMONTID:0001832	Organic compounds containing a functional group with the general formula R1(R2)C=S-NR3 (R1,R3=alkyl, aryl; R2=H, alkyl, aryl).
Thiocarboxylic acid amides	CHEMONTID:0001230	Organic compounds containing an amide of thiocarboxylic acid, with the general structure R1C(=S)N(R2)R3 (R1-R3=H, alkyl, aryl).
Thiocarboxylic acids	CHEMONTID:0001199	Organic compounds containing a thiocarboxylic acid functional group, with the general structure HOC(=S)OH.
Thiocarboxylic acids and derivatives	CHEMONTID:0001112	Organic compounds containing a derivative of thiocarboxylic acid, with the general structure RC(=S)R' (R=H, alkyl, aryl; R'=any heteroatom).
Thiochromanes	CHEMONTID:0002834	Organic heterocyclic compounds containing a thiochromane moiety.
Thiochromenes	CHEMONTID:0002499	Organosulfur compounds that are analogues to chromene, with the difference that a sulfur atom replaces the oxygen atom.
Thiocyanates	CHEMONTID:0001201	Salts or esters of thiocyanic acid, with the general formula RSC#N (R=alkyl, aryl).
Thiodiacetic acid derivatives	CHEMONTID:0001271	Compounds containing a thiodiacetic acid group (or esters/salts thereof) which is made up of two 2-sulfanylacetic (OC(=O)CS) acid moieties sharing their sulfur atom.
Thiodiarsines	CHEMONTID:0004242	Organoarsenic compounds with the general formula R[As]S[As]R', where R = organyl group, R'=H or organyl group.
Thiodioxopiperazines	CHEMONTID:0001732	Compounds containing a piperazine ring which bears two ketone groups and a sulfanyl group.
Thiodisulfinates	CHEMONTID:0004086	Organosulfur compounds with the general formula RS(=O)S, where R = organyl group.
Thioenol ethers	CHEMONTID:0002352	Compounds containing the enol ether functional group, with the formula R3SCR2=CR1.
Thioenols	CHEMONTID:0002353	Compounds containing the enol functional group, with the structure HS(R)C=CR'. Thioenols interconvert with thioketones that have an alpha-hydrogen.
Thioesters	CHEMONTID:0001200	Organic compounds containing an ester of thiocarboxylic acid, with the general structure RC(=S)XR' (R=H, alkyl, aryl; R'=alkyl, aryl; X=O,S).
Thioethers	CHEMONTID:0001202	Compounds containing the ester derivative of thiocarboxylic acid, with the general structure R-S-R' (R,R'=alkyl, aryl).
Thioflavans	CHEMONTID:0003683	Compounds containing a thiochromane skeleton substituted at the 2-position with a phenyl group.
Thioflavones	CHEMONTID:0003682	Organic compounds that contains the 2-phenyl-4H-1-benzothiopyran-4-one skeleton, which consists of a 1-benzothiopyran-4-one substituted at the 2-position by a phenyl group. These compounds are thio analogues of flavones.
Thioglycosides	CHEMONTID:0002205	Glycoside in which a sugar group is bonded through one carbon to another group via a S-glycosidic bond.
Thiohemiaminal derivatives	CHEMONTID:0001666	Compounds containing the thiohemiaminal group with the general structure R1SC(R2)(R3)N(R4)R5 (R1-R5=H, alkyl, aryl).
Thiohydroquinones	CHEMONTID:0002623	Organic compounds similar to hydroquinones wit the difference that one hydroxyl group is replaced by a thiol group.
Thiohydroximic acids	CHEMONTID:0004137	Organosulfur compounds with the general structure RC(S)=NOH, where R = H or organyl group.
Thiohydroximic acids and derivatives	CHEMONTID:0004136	Organosulfur compounds containing the thiohydroximic acid group (RC(S)=NOH, where R = H or organyl group) or a derivative thereof.
Thioketone s-oxides	CHEMONTID:0002025	Organic compounds containing a functional group with the general structure R2C=S=O (R not H).
Thioketones	CHEMONTID:0000121	Compounds in which the oxygen of a ketone has been replaced by divalent sulfur R2C=S ( R not H ). Thioketones that have an alpha-hydrogen interconvert with Thioenols. Moreover, they interconvert with thioaldehydes.
Thiolactams	CHEMONTID:0000166	Cyclic thioamides, obtained by replacing the oxygen atom from a lactam ring with sulfur.
Thiolactones	CHEMONTID:0001214	Cyclic thioesters obtained by replacing the oxygen atom from a lactone ring with sulfur.
Thiolane-2-thiones	CHEMONTID:0003463	Organic heterocyclic compounds containing a thiolane ring that carries a thione group at the 2-position. Thiolane is a five-membered saturated aliphatic ring made up of one sulfur atom and four carbon atoms.
Thiolane-3-thiones	CHEMONTID:0003464	Organic heterocyclic compounds containing a thiolane ring that carries a thione group at the 3-position. Thiolane is a five-membered saturated aliphatic ring made up of one sulfur atom and four carbon atoms.
Thiolanes	CHEMONTID:0000233	Organic compounds containing thiolane, a five-member saturated ring containing four carbon atoms and a sulfur atom.
Thiols	CHEMONTID:0002485	Organic compounds containing a functional group with the structure RSH (R = organyl).
Thiomorpholine carboxylic acids	CHEMONTID:0002408	Heterocyclic compounds containing a thiomorpholine ring substituted by one or more carboxylic acid groups. Thiomorpholine a six-membered aliphatic ring containing one nitrogen atom and one sulfur atom at positions 1 and 4 respectively, and four carbon atoms.
Thiomorpholine carboxylic acids and derivatives	CHEMONTID:0002289	Heterocyclic compounds containing a thiomorpholine ring substituted by one or more carboxylic acid groups (or derivative thereof). Thiomorpholine a six-membered aliphatic ring containing one nitrogen atom and one sulfur atom at positions 1 and 4 respectively, and four carbon atoms.
Thiomorpholines	CHEMONTID:0002288	Heterocyclic compounds containing a thiomorpholine ring, which is a six-membered aliphatic ring containing one nitrogen atom and one sulfur atom at positions 1 and 4 respectively, and four carbon atoms.
Thionucleosides	CHEMONTID:0001134	Nucleoside analogues that contain a thiolane or a thietane that is 1,3-disubstituted with a hydroxyl group and pyrimidine or purine base, at the 1- and 3-position, respectively.
Thioperoxols	CHEMONTID:0003159	Organosulfur compounds with the general formula R-OSH or R-SOH (R = organyl group).
Thiophene carboxamides	CHEMONTID:0002018	Compounds containing a thiophene ring which bears a carboxamide.
Thiophene carboxylic acids	CHEMONTID:0002419	Compounds containing a thiophene ring which bears a carboxylic acid group.
Thiophene carboxylic acids and derivatives	CHEMONTID:0002017	Compounds containing a thiophene ring which bears a carboxylic acid group (or a salt/ester thereof).
Thiophene sulfoxides	CHEMONTID:0003215	Organosulfur compounds containing a thiophene ring carrying a S=O bond (in some cases, a [S+][O-]).
Thiophenes	CHEMONTID:0000097	Compounds containing a five-membered aromatic moiety made up of one sulfur atom and four carbon atoms.
Thiophenol esters	CHEMONTID:0002360	Thioester derivatives of thiophenols. Thiophenol is a phenol derivative obtained by replacing the oxygen atom from the hydroxyl group (attached to the benzene) by a sulfur atom.
Thiophenol ethers	CHEMONTID:0002359	Thioether derivatives of thiophenols. Thiophenol is a phenol derivative obtained by replacing the oxygen atom from the hydroxyl group (attached to the benzene) by a sulfur atom.
Thiophenols	CHEMONTID:0001850	Compounds containing a thiophenol ring, which a phenol derivative obtained by replacing the oxygen atom from the hydroxyl group (attached to the benzene) by a sulfur atom.
Thiophosphate diesters	CHEMONTID:0003383	Organic compounds containing the thiophosphoric acid functional group or a derivative thereof, with the general structure ROP(OR')(OR'')=S, where exactly two R-groups are organyl groups.
Thiophosphate monoesters	CHEMONTID:0003382	Organic compounds containing the thiophosphoric acid functional group or a derivative thereof, with the general structure ROP(OR')(OR'')=S, where exactly one R-group is an organyl group.
Thiophosphate triesters	CHEMONTID:0003384	Organic compounds containing the thiophosphoric acid functional group or a derivative thereof, with the general structure ROP(OR')(OR'')=S, where exactly three R-groups are organyl groups.
Thiophosphoric acid esters	CHEMONTID:0001572	Organic compounds containing the thiophosphoric acid functional group or a derivative thereof, with the general structure ROP(OR')(OR'')=S, where at least one R-group is an organyl group.
Thiophthalic anhydrides	CHEMONTID:0002401	Organic heterocyclic aromatic compounds that contain a 1,3-dihydro-2-benzothiophene-1,3-dione moiety.
Thiopurine S-methylethers	CHEMONTID:0004542	Aromatic compounds containing a purine that bears a S-methylether group at the 6-position.
Thiopyranoquinolines	CHEMONTID:0002240	Polycyclic compounds containing a thiopyran ring fused to a quinoline moiety. Quinoline or benzo[b]pyridine is a bicyclic compound that consists of benzene fused to a pyridine.
Thiopyrans	CHEMONTID:0001895	Compounds containing a six-member aliphatic heterocycle made up of one sulfur atom and five carbon atoms.
Thiopyrimidines	CHEMONTID:0004173	Aromatic heterocyclic compounds containing a pyrimidine ring that has one or more carbon atoms involved in a C=S bond.
Thiosalicylic acids	CHEMONTID:0002785	Compounds containing a benzene ring which bears a carboxyl group and a sulfhydryl functional group a positions 1 and 2, respectively.
Thiosalicylic acids and derivatives	CHEMONTID:0000077	Compounds containing a benzene ring which bears a carboxyl group (or a derivative thereof) and a sulfhydryl functional group at positions 1 and 2, respectively.
Thioselenides	CHEMONTID:0004163	Organic compounds containing a sulfur-selenium bond. This class is restricted to compounds where at least one of the sulfur or selenium atoms is linked to a carbon atom.
Thiosemicarbazides	CHEMONTID:0001207	Compounds containing a derivative of thiosemicarbazide with the general structure R1N(R2)N(R3)C(=S)N(R4)R5 (R1-R5=H, alkyl, aryl) where the ketone group has carbonyl group has been replaced with a thiocarbonyl group.
Thiosemicarbazones	CHEMONTID:0001208	Compounds containing the thiosemicarbazone functional group obtained by replacing the carbonyl group by a thiocarbonyl group.
Thiosulfinic acid esters	CHEMONTID:0001161	Organic compounds containing an ester of thiosulfinic acid with the general structure RS(=S)OR' (R, R'=alkyl, aryl).
Thiosulfonic acids	CHEMONTID:0003284	Organic compounds containing a thiosulfonic acid, with the general formula [H]SS(R)(=O)=O, R=organyl group.
Thiosulfonimidic o-acids	CHEMONTID:0002531	Organic compounds with the general formula HOS(R)(=N)(=S) (R = alkyl, aryl).
Thiosulfonimidic s-acids	CHEMONTID:0002532	Organic compounds with the general formula HSS(R)(=N)(=O) (R = alkyl, aryl).
Thioureas	CHEMONTID:0001209	Organic compounds containing the thiourea functional group, a derivative of urea with the general structure (R1(N)R2C(=S)(R3)R4, R1-R4=H, alkyl, aryl), obtained by replacing the carbonyl group of urea with a thiocarbonyl group.
Thioxanthenes	CHEMONTID:0000199	Organic polycyclic compounds containing a thioxanthene moiety, which is an aromatic tricycle derived from xanthene by replacing the oxygen atom with a sulfur atom.
Thioxanthines	CHEMONTID:0000249	Organic polycyclic compounds containing a thioxanthine moiety, which is an aromatic bicyclic structure derived from xanthine by replacing a carbonyl group with a thiocarbonyl group.
Thioxanthones	CHEMONTID:0000203	Compounds containing a thioxanthene moiety which bears an ketone group.
Thiuram disulfides	CHEMONTID:0004791	Organic disulfides that have the general structural formula RN(R')C(=S)SSC(=S)N(R\")R\"', where R-R\"'=alkyl groups.
Thiuram monosulfides	CHEMONTID:0004790	Organic disulfides that have the general structural formula RN(R')C(=S)SCC(=S)N(R\")R\"', where R-R\"'=alkyl groups.
Thromboxanes	CHEMONTID:0000519	Eicosanoids structurally characterized by the presence of a 6-member ether containing ring.
Tigliane and ingenane diterpenoids	CHEMONTID:0002875	Diterpenoids containing the tigliane or ingenane carbon skeleton. The tigliane skeleton is a tetracyclic ring that consists of the 4/7/6/3 ring junction. It is derived from casbane by 6,10- and 5,14-cyclizations and is a framework of phorbol. The ingenane skeleton is derived by rearrangement of tigliane.
Tirucallane and euphane triterpenoids	CHEMONTID:0002885	Triterpenoids with a structure based either on the tirucallane or the euphane skeleton. They are obtained by backbone rearrangement of a dammarane-based precursor.
Tocopherols	CHEMONTID:0000201	Vitamin E derivatives containing a saturated trimethyltridecyl chain attached to the carbon C6 atom of a benzopyran ring system. The differ from tocotrienols that contain an unsaturated trimethyltrideca-3,7,11-trien-1-yl chain.
Tocotrienols	CHEMONTID:0002092	Vitamin E derivatives containing an unsaturated trimethyltrideca-3,7,11-trien-1-yl chain attached to the carbon C6 atom of a benzopyran ring system. The differ from tocopherols that contain a saturated trimethyltridecyl chain.
Toluamides	CHEMONTID:0004219	Aromatic compounds containing a toluene, which carries a carboxamide group.
Toluene diisocyanates	CHEMONTID:0003983	Organic compounds containing a benzene ring, which is substituted by a methyl group and two isocyanate groups.
Toluenes	CHEMONTID:0001091	Compounds containing a benzene ring which bears a methane group.
Tosyl compounds	CHEMONTID:0003276	Organosulfur compounds containing a tosyl group, with the general formula CH3C6H4S(O2)R (R = any atom).
Transition metal alkyls	CHEMONTID:0004443	Metal alkyls, where the alkyl group is attached to a transition metal atom.
Transition metal aluminates	CHEMONTID:0000988	Inorganic compounds in which the largest oxoanion is aluminate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal antimonates	CHEMONTID:0000989	Inorganic compounds in which the largest oxoanion is antimonate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal antimonites	CHEMONTID:0000990	Inorganic compounds in which the largest oxoanion is antimonite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal arsenates	CHEMONTID:0000991	Inorganic compounds in which the largest oxoanion is arsenate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal arsenites	CHEMONTID:0000992	Inorganic compounds in which the largest oxoanion is arsenite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal astatides	CHEMONTID:0000586	Inorganic compounds in which the largest halogen atom is Astatine, and the heaviest metal atom is a transition metal.
Transition metal bisulfites	CHEMONTID:0000993	Inorganic compounds in which the largest oxoanion is bisulfite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal borates	CHEMONTID:0000994	Inorganic compounds in which the largest oxoanion is borate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal bromates	CHEMONTID:0000830	Inorganic compounds in which the largest oxoanion is bromate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal bromides	CHEMONTID:0000587	Inorganic compounds in which the largest halogen atom is Bromine, and the heaviest metal atom a transition metal.
Transition metal chlorates	CHEMONTID:0000831	Inorganic compounds in which the largest oxoanion is chlorate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal chlorides	CHEMONTID:0000588	Inorganic compounds in which the largest halogen atom is Chlorine, and the heaviest metal atom is a transition metal.
Transition metal chlorites	CHEMONTID:0000832	Inorganic compounds in which the largest oxoanion is chlorite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal chromates	CHEMONTID:0000833	Inorganic compounds in which the largest oxoanion is chromate, and in which the heaviest atom is a transition metal.
Transition metal chromites	CHEMONTID:0000834	Inorganic compounds in which the largest oxoanion is chromite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal cyanates	CHEMONTID:0000835	Inorganic compounds in which the largest oxoanion is cyanate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal cyanide salts	CHEMONTID:0004064	Organic compounds containing a transition metal and a cyanide ion [C-]#N.
Transition metal dithionites	CHEMONTID:0000867	Inorganic compounds in which the largest oxoanion is dithionite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal dithiophosphates	CHEMONTID:0002305	Inorganic compounds in which the largest oxoanion is dithiophosphate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal ferrates	CHEMONTID:0001317	Inorganic compounds in which the largest oxoanion is ferrate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal fluorides	CHEMONTID:0000589	Inorganic compounds in which the largest halogen atom is fluorine, and the heaviest metal atom is a transition metal.
Transition metal hydrides	CHEMONTID:0000536	Inorganic hydride compounds in which the heaviest metal atom is a transition metal.
Transition metal hydroxides	CHEMONTID:0000837	Inorganic compounds in which the largest oxoanion is hydroxide, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal hypobromites	CHEMONTID:0000838	Inorganic compounds in which the largest oxoanion is hypobromite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal hypochlorites	CHEMONTID:0000839	Inorganic compounds in which the largest oxoanion is hypochlorite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal hyponitrites	CHEMONTID:0000840	Inorganic compounds in which the largest oxoanion is hyponitrite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal hypophosphites	CHEMONTID:0000841	Inorganic compounds in which the largest oxoanion is hypophosphite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal hyposulfites	CHEMONTID:0000868	Inorganic compounds in which the largest oxoanion is hyposulfite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal iodates	CHEMONTID:0000842	Inorganic compounds in which the largest oxoanion is iodate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal iodides	CHEMONTID:0000590	Inorganic compounds in which the largest halogen atom is Iodine, and the heaviest metal atom is a transition metal.
Transition metal manganates	CHEMONTID:0000995	Inorganic compounds in which the largest oxoanion is manganate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal metavanadates	CHEMONTID:0003293	Inorganic compounds in which the largest oxoanion is metavanadate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal molybdates	CHEMONTID:0000996	Inorganic compounds in which the largest oxoanion is molybdate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal nitrates	CHEMONTID:0000843	Inorganic compounds in which the largest oxoanion is nitrate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal nitrides	CHEMONTID:0000537	Inorganic compounds of nitrogen where nitrogen has a formal oxidation state of -3, and the heaviest metal atom is a transition metal.
Transition metal nitrites	CHEMONTID:0001616	Inorganic compounds in which the largest oxoanion is nitrite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal organides	CHEMONTID:0000461	Inorganic compounds belonging to either the alkaline earth metal hydrides, alkaline earth metal nitrides, alkaline earth metal oxides, alkaline earth metal sulfides.
Transition metal orthonitrates	CHEMONTID:0000844	Inorganic compounds in which the largest oxoanion is orthonitrate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal orthovanadates	CHEMONTID:0001006	Inorganic compounds in which the largest oxoanion is orthovanadate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal oxides	CHEMONTID:0000538	Inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is a transition metal.
Transition metal oxoanionic compounds	CHEMONTID:0000450	Inorganic oxoanionic compounds in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal perbromates	CHEMONTID:0000845	Inorganic compounds in which the largest oxoanion is perbromate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal perchlorates	CHEMONTID:0000846	Inorganic compounds in which the largest oxoanion is perchlorate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal periodates	CHEMONTID:0000847	Inorganic compounds in which the largest oxoanion is periodate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal permanganates	CHEMONTID:0000848	Inorganic compounds in which the largest oxoanion is permanganate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal peroxodisulfates	CHEMONTID:0000863	Inorganic compounds in which the largest oxoanion is peroxodisulfate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal peroxomonosulfates	CHEMONTID:0000862	Inorganic compounds in which the largest oxoanion is peroxomonosulfate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal peroxynitrates	CHEMONTID:0000849	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal peroxynitrites	CHEMONTID:0000850	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal perrhenates	CHEMONTID:0000851	Inorganic compounds in which the largest oxoanion is perhenate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal pertechnetates	CHEMONTID:0000852	Inorganic compounds in which the largest oxoanion is pertechnetate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal phosphates	CHEMONTID:0000854	Inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal phosphites	CHEMONTID:0000853	Inorganic compounds in which the largest oxoanion is phosphite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal phosphonates	CHEMONTID:0002373	Inorganic compounds in which the largest oxoanion phosphonate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal plumbates	CHEMONTID:0000997	Inorganic compounds in which the largest oxoanion is plumbate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal plumbites	CHEMONTID:0000998	Inorganic compounds in which the largest oxoanion is plumbite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal pyrophosphates	CHEMONTID:0000855	Inorganic compounds in which the largest oxoanion is pyrophosphate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal pyrosulfates	CHEMONTID:0000864	Inorganic compounds in which the largest oxoanion is pyrosulfate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal salts	CHEMONTID:0000443	Inorganic halogenic compounds in which the heaviest metal atom is a transition metal.
Transition metal selenates	CHEMONTID:0000856	Inorganic compounds in which the largest oxoanion is selenate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal selenites	CHEMONTID:0000857	Inorganic compounds in which the largest oxoanion is selenite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal selenophosphates	CHEMONTID:0002272	Inorganic compounds in which the largest oxoanion is selenophosphate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal silicates	CHEMONTID:0000999	Inorganic compounds in which the largest oxoanion is silicate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal stannates	CHEMONTID:0001000	Inorganic compounds in which the largest oxoanion is stannate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal stannites	CHEMONTID:0001001	Inorganic compounds in which the largest oxoanion is stannite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal sulfates	CHEMONTID:0000858	Inorganic compounds in which the largest oxoanion is sulfate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal sulfides	CHEMONTID:0000539	Inorganic compounds containing a sulfur atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is a transition metal.
Transition metal sulfites	CHEMONTID:0000859	Inorganic compounds in which the largest oxoanion is sulfite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal superoxides	CHEMONTID:0000860	Inorganic compounds in which the largest oxoanion is superoxide, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal tellurates	CHEMONTID:0001002	Inorganic compounds in which the largest oxoanion is tellurate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal tellurites	CHEMONTID:0001003	Inorganic compounds in which the largest oxoanion is tellurite, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal tetrahydroxyborates	CHEMONTID:0001004	Inorganic compounds in which the largest oxoanion is tetrahydroxyborate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal tetrathionates	CHEMONTID:0000865	Inorganic compounds in which the largest oxoanion is tetrathionate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal thiophosphates	CHEMONTID:0002304	Inorganic compounds in which the largest oxoanion is thiophosphate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal thiosulfates	CHEMONTID:0000866	Inorganic compounds in which the largest oxoanion is thiosulfate, and in which the heaviest atom not in an oxoanion is a transition metal.
Transition metal tungstates	CHEMONTID:0001005	Inorganic compounds in which the largest oxoanion is tungstate, and in which the heaviest atom not in an oxoanion is a transition metal.
Triacylglycerols	CHEMONTID:0001135	Glycerides consisting of three fatty acid chains covalently bonded to a glycerol molecule through ester linkages.
Trialkoxysilanes	CHEMONTID:0003140	Organosilicon compounds with the general formula RO[Si](R')(OR'')OR''' (R-R''' = aliphatic organyl group).
Trialkyl amine oxides	CHEMONTID:0004184	Hydrocarbyl derivatives of the aminoxide anion, with the general formula R3N+[O-] or R3N=O, where R is an alkyl group.
Trialkyl phosphates	CHEMONTID:0003460	Organic compounds containing a phosphate group that is linked to exactly three alkyl chains.
Trialkylaluminiums	CHEMONTID:0004591	Organoaluminium compounds where the aluminium atom is substituted with three alkyl groups.
Trialkylamines	CHEMONTID:0002239	Organic compounds containing a trialkylamine group, characterized by exactly three alkyl groups bonded to the amino nitrogen.
Trialkylantimony halides	CHEMONTID:0004583	Organoantimony compounds where the tetravalent or pentavalent antimony atom is substituted by an halogen atom and exactly three alkyl groups.
Trialkylarsane oxides	CHEMONTID:0004185	Organoarsenic compounds with the general formula R3As=O.
Trialkylarsanes	CHEMONTID:0004059	Organoarsenic compounds containing a trivalent arsenic atom linked to three alkyl groups.
Trialkylarsine oxides	CHEMONTID:0004642	Hydrocarbyl derivatives of H3As=O, where the Arsenic atom is linked to three alkyl groups.
Trialkylboranes	CHEMONTID:0004575	Organoboron compounds where the boron atom is substituted by only three alkyl groups.
Trialkylchlorosilanes	CHEMONTID:0004480	Organoheterosilanes, bearing a silicon atom linked to three alkyl groups and one chlorine atom.
Trialkylglycerols	CHEMONTID:0004782	Triradylglycerols that carry three chains attached to the glycerol moiety through ether linkages.
Trialkylheterosilanes	CHEMONTID:0004479	Organoheterosilanes, bearing a silicon atom linked to three alkyl groups and one heteroatom.
Trialkylphosphanes	CHEMONTID:0004186	Organophosphorus compounds with the general formula R3P=O.
Trialkylphosphites	CHEMONTID:0004484	Organic compounds containing a phosphorous acid, which is tri-esterified with alkyl groups.
Trialkylsilanes	CHEMONTID:0003867	Organosilicon compounds containing exactly one alkyl chain attached to the silicon atom.
Trialkylsilanols	CHEMONTID:0003268	Organosilicon compounds with the general formula HO[Si](R)(R')R'' where R, R' and R'' are alkyl groups.
Trialkylstibanes	CHEMONTID:0004069	Organoantimony compounds containing a trivalent antimony atom linked to exactly three alkyl chains.
Trialkyltins	CHEMONTID:0004072	Triorganotin compounds where the tin atom is linked to exactly three alkyl groups.
Triarylamines	CHEMONTID:0002457	Organic compounds containing a trialkylamine group, characterized by exactly three aryl groups bonded to the amino nitrogen.
Triazinanes	CHEMONTID:0002693	Compounds containing a triazinane ring, which is a six-membered saturated heterocycle with three nitrogen ring atoms and three ring carbon atoms.
Triazines	CHEMONTID:0000098	Compounds containing a triazine ring, which is a heterocyclic ring, similar to the six-member benzene ring but with three carbons replaced by nitrogen atoms.
Triazinethiones	CHEMONTID:0001922	Compounds containing a triazine ring which bears a thioketone group.
Triazinones	CHEMONTID:0001920	Compounds containing a triazine ring which bears a ketone group a carbon atom.
Triazirines	CHEMONTID:0002692	Heterocyclic compounds containing a triazirine ring, which is a three-membered unsaturated cycle with three nitrogen atoms.
Triazole carboxamides	CHEMONTID:0002325	Heterocyclic compounds containing a triazole ring substituted by at least one carboxamide group.
Triazole carboxylic acids	CHEMONTID:0002420	Heterocyclic compounds containing a triazole ring substituted by at least one carboxylic acid group.
Triazole carboxylic acids and derivatives	CHEMONTID:0002324	Heterocyclic compounds containing a triazole ring substituted by at least one carboxylic acid group (or a derivative thereof).
Triazole ribonucleosides and ribonucleotides	CHEMONTID:0002342	Nucleoside derivatives containing a ribose (or deoxyribose) moiety which is N-glycosylated to a triazole. Nucleotides have a phosphate group linked to the C5 carbon of the ribose (or deoxyribose) moiety.
Triazoles	CHEMONTID:0000099	Compounds containing a five-member aromatic ring of two carbon atoms and three nitrogen atoms.
Triazolidines	CHEMONTID:0000235	Compounds containing a five-member saturated aliphatic ring of two carbon atoms and three nitrogen atoms.
Triazolidinones	CHEMONTID:0001327	Compounds containing a triazolidine ring which bears a ketone group.
Triazolines	CHEMONTID:0004461	Compounds that contain the triazoline ring, which is a five-membered unsaturated ring having two carbon atoms, three nitrogen atoms and one double bond.
Triazolobenzothiazoles	CHEMONTID:0004201	Compound containing a triazole ring fused to the benzene or the thiazole moiety of the benzothiazole ring system.
Triazolodiazepines	CHEMONTID:0002322	Heterocyclic aromatic compounds containing a triazole ring fused to a diazepine ring. Triazole is a five-membered ring consisting of two carbon atoms and three nitrogen atoms. Diazepine is a 7-membered ring consisting of five carbon and two nitrogen atoms.
Triazolones	CHEMONTID:0000234	Compounds containing a triazole ring which bears a ketone group.
Triazolopyrazines	CHEMONTID:0000313	Compounds containing a triazole ring fused to a pyrazine ring. Triazole is a five-membered ring consisting of two carbon atoms and three nitrogen atoms. Pyrazine is a 6-membered ring consisting of six carbon atoms and two nitrogen centers at ring positions 1 and 4.
Triazolopyridazines	CHEMONTID:0002117	Polycyclic compounds containing a triazole fused to a pyridazine. Triazole is a five-membered ring consisting of two carbon atoms and three nitrogen atoms. Pyridazine is a six-membered aromatic ring with two adjacent nitrogen atoms, and for carbon atoms.
Triazolopyridines	CHEMONTID:0000314	Compounds containing a triazole ring fused to a pyridine ring. Triazole is a five-membered ring consisting of two carbon atoms and three nitrogen atoms. Pyridine is a 6-membered ring consisting of five carbon atoms and one nitrogen center.
Triazolopyridinones	CHEMONTID:0001123	Compounds containing triazolopyridine moiety which bears a ketone group. Triazolopyridine is a bicyclic compound consisting of a triazole fused to a pyridine ring.
Triazolopyrimidines	CHEMONTID:0001443	Polycyclic aromatic compounds containing triazole ring fused to a pyrimidine ring. Triazole is a five-membered ring consisting of two carbon atoms and three nitrogen atoms. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions.
Triazoloquinazolines	CHEMONTID:0002379	Organic heterocyclic compounds containing a thiazole ring fused to a quinazoline ring system.
Triazolothiazoles	CHEMONTID:0002124	Polycyclic compounds containing a triazole ring fused to a thiazole ring. Triazole is a five-membered ring consisting of two carbon atoms and three nitrogen atoms. Thiazole is a 6-membered ring that contains both sulfur and nitrogen.
Tricarboxylic acids and derivatives	CHEMONTID:0001986	Carboxylic acids containing exactly three carboxyl groups.
Trichothecenes	CHEMONTID:0001789	Sesquiterpene mycotoxins structurally characterized by the presence of an epoxide ring and a benzopyran derivative with a variant number of hydroxyl, acetyl, or other substituents. The most important structural features causing the biological activities of trichothecenes are the 12,13-epoxy ring, the presence of hydroxyl or acetyl groups at appropriate positions on the trichothecene nucleus and the structure and position of the side-chain.
Trifluoromethanesulfonates	CHEMONTID:0004581	Alkanesulfonic acids, that contain a sulfonate group that is substituted with a trifluoromethyl group.
Trifluoromethylbenzenes	CHEMONTID:0004551	Organofluorine compounds that contain a benzene ring substituted with one or more trifluoromethyl groups.
Trihalomethanes	CHEMONTID:0004160	Organic compounds in which exactly three of the four hydrogen atoms of methane (CH4) are replaced by halogen atoms.
Trihydroxy bile acids, alcohols and derivatives	CHEMONTID:0001104	Prenol lipids structurally characterized by a bile acid or alcohol which bears three hydroxyl groups.
Trimethylsilyl esters	CHEMONTID:0004481	Organoheterosilanes, bearing a silicon atom that is linked to three methyl groups and is O-esterified.
Triorganodialkoxyarsoranes	CHEMONTID:0004283	Organoarsenic compounds containing a pentavalent arsenic compound that is by three organic groups, alkoxy groups.
Triorganodihaloarsoranes	CHEMONTID:0004245	Organoarsenic compounds containing a pentavalent arsenic compound that is by three organic groups and two halogen atoms.
Triorganolead compounds	CHEMONTID:0004065	Compounds containing a lead compound bonded to three carbon atoms.
Triorganotin compounds	CHEMONTID:0004066	Compounds containing a tin compound bonded to exactly three carbon atoms.
Triorganotin halide salts	CHEMONTID:0004067	Organic compounds containing a tin atom bonded to three carbon atoms and a halogen atom.
Triorganotin metal salts	CHEMONTID:0004068	Organic compounds containing a tin atom bonded to three carbon atoms and a metal atom.
Trioses	CHEMONTID:0001356	Monosaccharides with a single carbohydrate unit, which contains three carbon atoms.
Trioxanes	CHEMONTID:0001853	Compounds containing a six-member aliphatic saturated heterocycle made up of three oxygen atoms and three carbon atoms.
Trioxolanes	CHEMONTID:0001854	Compounds containing a five-member aliphatic saturated heterocycle made up of three oxygen atoms and two carbon atoms.
Triphenyl compounds	CHEMONTID:0004524	Aromatic compounds containing a triphenyl moiety.
Triphenylenes	CHEMONTID:0000518	Compounds containing a triphenylene moiety, which consists of four fused benzene rings forming a 9,10-benzo[l]phenanthrene.
Triquinane sesquiterpenoids	CHEMONTID:0002004	Sesquiterpenoids with a structure based on the triquinane backbone.
Triradylcglycerols	CHEMONTID:0003815	Glycerolipids that carry exactly three acyl chains attached to the glycerol moiety.
Tris(ketoximino)silanes	CHEMONTID:0004609	Organoheterosilanes with the general structure RSi(ON=CMeEt)3, where R is an organyl group.
Trisubstituted amine oxides and derivatives	CHEMONTID:0003070	Amine oxides where the N atom is trisubstituted with three organic groups.
Trisubstituted imidazoles	CHEMONTID:0002628	Imidazoles in which the imidazole ring is substituted at exactly three different positions.
Triterpene glycosides	CHEMONTID:0001580	Triterpenoids in which an isoprene unit is glycosylated.
Triterpene saponins	CHEMONTID:0002358	Glycosylated derivatives of triterpene sapogenins. The sapogenin moiety backbone is usually based on the oleanane, ursane, taraxastane, bauerane, lanostane, lupeol, lupane, dammarane, cycloartane, friedelane, hopane, 9b,19-cyclo-lanostane, cycloartane, or cycloartanol skeleton.
Triterpenoids	CHEMONTID:0001553	Terpene molecules containing six isoprene units.
Trithianes	CHEMONTID:0001862	Organic compounds containing a six-member aliphatic saturated heterocycle made up of three sulfur atoms and three carbon atoms.
Trithiolanes	CHEMONTID:0000482	Organic compounds containing a six-member aliphatic saturated heterocycle made up of three sulfur atoms and two carbon atoms.
Trithiosulfonic acids	CHEMONTID:0002533	Organic compounds with the general formula HSS(R)(=S)(=S) (R = alkyl, aryl).
Trivalent inorganic arsenic compounds	CHEMONTID:0004053	Inorganic compounds containing a trivalent arsenic atom.
Trivalent organic arsenic compounds	CHEMONTID:0004055	Organoarsenic compounds in which a carbon is linked to a trivalent arsenic atom.
Tropane alkaloids	CHEMONTID:0000492	Organic compounds containing the nitrogenous bicyclic alkaloid parent N-Methyl-8-azabicyclo[3.2.1]octane.
Tropoloisoquinolines	CHEMONTID:0003016	Organic compounds that contain a tropolone ring fused to an isoquinoline ring to form an azuleno[1,2,3-ij]isoquinoline skeleton.
Tropolones	CHEMONTID:0001674	Compounds containing tropone ring with a hydroxyl group at ring position 2.
Tropones	CHEMONTID:0001650	Compounds containing a tropone ring, which is a cycloheptatrienone ring bearing a ketone group.
Tryptamines and derivatives	CHEMONTID:0000183	Compounds containing the tryptamine backbone, which is structurally characterized by an indole ring subsituted at the 3-position by an ethanamine.
Tuberostemospironine-type alkaloids	CHEMONTID:0003916	Alkaloids with a structure that is characterized by a 2H-spiro[furan-2,9A[9H]pyrrolo[1,2-a]azepin]-\n5-one nucleus which displays a spiro gamma-lactone at C-9 of the basic ring.
Type 1 cyanolipids	CHEMONTID:0001745	Diesters of 1-cyano-2-hydroxymethylprop-2-en-1-ol.
Type 1 wax diesters	CHEMONTID:0003323	Waxes based on beta-hydroxy acids (usually C8 to C16) esterified with s fatty acid (usually C6 to C16) at the beta-hydroxy position and with a fatty alcohol (usually C16 to C20) at the carboxyl group.
Type 2 cyanolipids	CHEMONTID:0001746	Diesters of 1-cyano-2-hydroxymethylprop-1-en-3-ol.
Type 2 wax diesters	CHEMONTID:0003324	Waxes based on alkane-1,2-diols (usually C12-C23) esterified with C10-C20 acids at the two hydroxyl groups.
Type 3 cyanolipids	CHEMONTID:0001747	Monoesters of 1-cyano-2-hydroxymethylprop-1-ene.
Type 4 cyanolipids	CHEMONTID:0001748	Monoesters of 1-cyano-2-methylprop-2-en-1-ol.
Tyrosine and derivatives	CHEMONTID:0004319	Compounds containing tyrosine or a derivative thereof resulting from reaction of tyrosine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
Tyrosol esters	CHEMONTID:0001648	Tyrosol derivatives in the hydroxyl group of the hydroxyethyl moiety is replaced an o-ester group.
Tyrosols	CHEMONTID:0003698	Organic aromatic compounds containing a phenethyl alcohol moiety that carries a hydroxyl group at the 4-position of the benzene group.
Tyrosols and derivatives	CHEMONTID:0000139	Compounds containing a hydroxyethyl group attached to the C4 carbon of a phenol group.