The molecule is a steroid acid anion that is the conjugate base of Delta(4)-dafachronic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a Delta(4)-dafachronic acid.
(6R)-6-[(8S,9S,10R,13R,14S,17R)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]-2-methylheptanoate