[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][=C][C][=C][Ring1][#Branch1]"}, {"from": "gpt", "value": "The molecule appears as a colorless liquid. Insoluble in water and less dense than water. Vapors heavier than air. Inhalation of high concentrations may have a narcotic effect. Used to make other chemicals."}]