SMILES: C[C@H](CCC=C(C)C)[C@H]1CC[C@@H]2[C@@]1(CCC3=C2CC[C@@H]4[C@@]3(CC[C@@H]([C@H]4C(=O)[O-])O)C)C
Description: The molecule is a steroid acid anion that is the conjugate base of 4alpha-carboxyzymosterol, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a 3beta-hydroxy steroid and a 4-carboxyzymosterol(1-).