[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][F]"}, {"from": "gpt", "value": "The molecule appears as a colorless gas with a faint ethereal odor. Shipped as a confined liquid under its vapor pressure. Any leak can either be liquid or vapor. Contact with the liquid can cause frostbite. Easily ignited. Vapors are heavier than air. Can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket."}]