[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][C][C][=C]"}, {"from": "gpt", "value": "The molecule appears as a colorless liquid. Flash point 70 \u00b0F. Insoluble in water and less dense (at about 6 lb / gal) than water. Hence floats on water. Vapors are heavier than air and may settle in depressions. Reported to biodegrade very slowly. Used in organic synthesis, surfactants, and plasticizers."}]