SMILES: C[C@H](CCC(=O)[O-])[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2[C@H](C[C@H]4[C@@]3(CC[C@@H](C4)O)C)O)C
Description: The molecule is a steroid acid anion that is the conjugate base of isoursodeoxycholic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an isoursodeoxycholic acid.