SMILES: C[C@@]12CCC[C@@]([C@H]1CC[C@]34[C@H]2CC[C@H](C3)C(=C)C4)(C)C(=O)[O-]
Description: The molecule is a monocarboxylic acid anion that is the conjugate base of ent-kaur-16-en-19-oic acid, obtained by deprotonation of the carboxy group. It is a conjugate base of an ent-kaur-16-en-19-oic acid.