The molecule is a monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of 17alpha-(N-acetyl-D-glucosaminyl)estradiol 3-glucosiduronic acid; major species at pH 7.3. It is a carbohydrate acid derivative anion and a monocarboxylic acid anion. It is a conjugate base of a 17alpha-(N-acetyl-D-glucosaminyl)estradiol 3-glucosiduronic acid.
(2S,3S,4S,5R,6S)-6-[[(8R,9S,13S,14S,17R)-17-[(3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-yl]oxy]-3,4,5-trihydroxyoxane-2-carboxylate