[{"from": "human", "value": "Describe this molecule. [B][Branch1][C][F][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is a colorless gas with a pungent odor. It is toxic by inhalation. It is soluble in water and slowly hydrolyzed by cold water to give off hydrofluoric acid, a corrosive material. Its vapors are heavier than air. Prolonged exposure of the containers to fire or heat may result in their violent rupturing and rocketing."}]