[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C][Branch2][Ring1][Ring1][C][Branch1][C][C][Branch1][C][C][C][O][C][=Branch1][C][=O][C][Branch1][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a colorless liquid with a mild characteristic odor. Floats on water. (USCG, 1999)"}]