[{"from": "human", "value": "Describe this molecule. [C][C][C][C][=C][Branch1][P][C][=Branch1][=N][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][O-1][C][=Branch1][C][=O][O][Ring1][#C]"}, {"from": "gpt", "value": "The molecule is major species at pH 7.3. It is a 2-benzopyran and an aromatic carboxylate."}]