[{"from": "human", "value": "Describe this molecule. [C][C@@H1][C@@H1][Branch2][Ring1][O][C][C@@H1][C@][Ring1][Branch1][C][C][Branch1][=C][C][C@H1][Ring1][Branch1][C][=C][Ring1][Branch2][C][=Branch1][C][=O][O-1][Branch1][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a hydroxy monocarboxylic acid anion that is the conjugate base of 1-deoxy-11beta-hydroxypentalenic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a 1-deoxy-11beta-hydroxypentalenic acid."}]