[{"from": "human", "value": "Provide a description of this molecule. [B][Branch1][#Branch1][O][C][Branch1][C][C][C][Branch1][#Branch1][O][C][Branch1][C][C][C][O][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule appears as a colorless liquid. Less dense than water and insoluble in water. Vapors heavier than air. Used to make other chemicals."}]