The molecule is a steroid acid anion that is the conjugate base of 4-carboxyzymosterol, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a 4-carboxyzymosterol.
(3S,5S,10S,13R,14R,17R)-3-hydroxy-10,13-dimethyl-17-[(2R)-6-methylhept-5-en-2-yl]-2,3,4,5,6,7,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene-4-carboxylate