The molecule is a steroid glucuronide anion that is the conjugate base of estrone 3-O-(beta-D-glucuronide) arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It is a steroid glucosiduronic acid anion and a beta-D-glucosiduronate. It is a conjugate base of an estrone 3-O-(beta-D-glucuronide).
(2S,3S,4S,5R,6S)-3,4,5-trihydroxy-6-[[(8R,9S,13S,14S)-13-methyl-17-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-yl]oxy]oxane-2-carboxylate