The molecule is a carbohydrate acid derivative anion that is the conjugate base of 17alpha-(N-acetyl-alpha-D-glucosaminyl)estradiol 3-glucuronoside, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a 17alpha-(N-acetyl-alpha-D-glucosaminyl)estradiol 3-glucuronoside.
(2S,3S,4S,5R,6S)-6-[[(8R,9S,13S,14S,17R)-17-[(2S,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