[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][=Branch2][Ring1][Branch2][=C][C][C][/C][=Branch1][P][=C][/C][O][C][=Branch1][C][=O][C][C][=C][C][=C][C][=C][Ring1][=Branch1][/C][C]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester."}]