The molecule is a retinoid anion that is the conjugate base of all-trans-4,18-dihydroxyretinoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a retinoid anion and a hydroxy monocarboxylic acid anion. It is a conjugate base of an all-trans-4,18-dihydroxyretinoic acid.
(2E,4E,6E,8E)-9-[3-hydroxy-2-(hydroxymethyl)-6,6-dimethylcyclohexen-1-yl]-3,7-dimethylnona-2,4,6,8-tetraenoate