The molecule is a steroid acid anion resulting from the deprotonation of the carboxy group of 3beta-hydroxy-5alpha-ergosta-7,24(28)-diene-4alpha-carboxylic acid. The major species at pH 7.3. It is a conjugate base of a 3beta-hydroxy-5alpha-ergosta-7,24(28)-diene-4alpha-carboxylic acid.
(3S,4S,5S,9R,10S,13R,14R,17R)-3-hydroxy-10,13-dimethyl-17-[(2R)-6-methyl-5-methylideneheptan-2-yl]-2,3,4,5,6,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene-4-carboxylate