[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][C][=Branch1][C][=C][C][C]"}, {"from": "gpt", "value": "The molecule is an alkene that is heptane which carries a methylidene group at position 3. It has a role as a human metabolite. It is an alkene and a volatile organic compound."}]