SMILES: C[C@]12CC[C@@H]([C@@]([C@@H]1CC[C@@]3([C@@H]2CC=C4[C@]3(CC[C@@]5([C@H]4CC(CC5)(C)C)C(=O)[O-])C)C)(C)C(=O)[O-])O
Description: The molecule is a dicarboxylic acid dianion obtained by deprotonation of both carboxy groups of gypsogenic acid; major species at pH 7.3. It is a conjugate base of a gypsogenic acid.