[{"from": "human", "value": "Please give me some details about this molecule. [C][C@][C][C][C@H1][Branch2][Ring1][Ring2][C@H1][Branch1][#Branch2][C@@H1][Ring1][=Branch1][C][C][C][Ring1][=Branch2][=O][C][C][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is an oxo monocarboxylic acid anion that is the conjugate base of 5-hydroxy-3-[(3aS,4S,5R,7aS)-7a-methyl-1,5-dioxo-octahydro-1H-inden-4-yl]propanoate, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is an oxo monocarboxylic acid anion, a hydroxy monocarboxylic acid anion and a carbocyclic fatty acid anion. It is a conjugate base of a 3-[(3aS,4S,5R,7aS)-5-hydroxy-7a-methyl-1-oxo-octahydroinden-4-yl]propanoic acid."}]