[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is an alkane that is propane substituted by a methyl group at position 2. It has a role as a food propellant and a refrigerant. It is an alkane and a gas molecular entity."}]