[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch2][Ring1][Ring2][=C][C][Branch1][#Branch2][C][Branch1][C][C][Branch1][C][C][C][=C][O][C][=Branch1][C][=O][C][C]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester."}]