The molecule is a retinoid glucuronide anion that is the conjugate base of 1-O-(5,6-epoxyretinoyl)-beta-D-glucuronic acid arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It is a conjugate base of a 1-O-(5,6-epoxyretinoyl)-beta-D-glucuronic acid.
(2S,3S,4S,5R,6S)-6-[(2E,4E,6E,8E)-3,7-dimethyl-9-(2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl)nona-2,4,6,8-tetraenoyl]oxy-3,4,5-trihydroxyoxane-2-carboxylate