[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][=Branch1][C][=O][C][=C]"}, {"from": "gpt", "value": "The molecule is an enone that is pent-1-ene substituted by an oxo group at position 3. It has a role as a human metabolite, a flavouring agent, a plant metabolite and a genotoxin."}]