Vitamins A and Retinenes
As is well known, the vitamins A and retinenes are lower isoprenologs of the monocyclic carotenoid pigments; their molecules contain 20 carbon atoms instead of 40. As a special feature they carry functional groups at the end of the aliphatic chain. The structures of the four most important compounds to be discussed appear in the formulas (LI)–(LIV.)
KeywordsMaleic Anhydride Extinction Curve Ethyl Formate Cone Opsin Sodium Aluminum Silicate
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