The molecule is a steroid glucosiduronic acid that is 16-epiestriol having a single beta-D-glucuronic acid residue attached at position 16. It is a beta-D-glucosiduronic acid and a steroid glucosiduronic acid. It derives from a 16beta-hydroxyestradiol. It is a conjugate acid of a 16-epiestriol 16-O-(beta-D-glucuronide)(1-).
(2S,3S,4S,5R,6R)-6-[[(8R,9S,13S,14S,16S,17R)-3,17-dihydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-16-yl]oxy]-3,4,5-trihydroxyoxane-2-carboxylic acid