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