[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a colorless solid with a tar like odor. Sinks and mixes slowly with water. (USCG, 1999)"}]