[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][C][F][Branch1][C][F][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is a colorless nonflammable gas. It is shipped as a liquid under pressure. It may be narcotic at high concentrations. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. It is used as a refrigerant."}]