The molecule is a steroid sulfate oxoanion obtained by deprotonation of the sulfo group of 17beta-estradiol 3-sulfate; major species at pH 7.3. It is a conjugate base of a 17beta-estradiol 3-sulfate.
[(8R,9S,13S,14S,17S)-17-hydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-yl] sulfate