[{"from": "human", "value": "What can you tell me about this molecule? [C][F]"}, {"from": "gpt", "value": "The molecule is a colorless flammable gas which is heavier than air. It has an agreeable ether-like odor. It is narcotic in high concentrations. It burns with evolution of hydrogen fluoride. The flame is colorless, similar to alcohol. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket."}]