[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][O][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a colorless liquid. Melting point near room temperature (18-20 \u00b0C). "}]