The molecule is a steroid glucosiduronic acid that is the 3-beta-D-glucuronide of estriol; a steroid hormone ligand recognised by the monoclonal antibody 4155. It has a role as an epitope and an estrogen. It is a 17beta-hydroxy steroid, a 16alpha-hydroxy steroid and a steroid glucosiduronic acid. It derives from an estriol. It is a conjugate acid of an estriol 3-O-(beta-D-glucuronide)(1-). It derives from a hydride of an estrane.
(2S,3S,4S,5R,6S)-6-[[(8R,9S,13S,14S,16R,17R)-16,17-dihydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-yl]oxy]-3,4,5-trihydroxyoxane-2-carboxylic acid