Carotenes

A type of unsaturated hydrocarbons containing eight consecutive isoprene units. They are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family.

Organic compounds -> Lipids and lipid-like molecules -> Prenol lipids -> Tetraterpenoids -> Carotenoids