[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a carboxylic acid anion obtained by the removal of proton from the carboxy group of 4-phenylbutyric acid. It is a conjugate base of a 4-phenylbutyric acid."}]