[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][=C][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is an enone that is pent-2-ene in which the two methylene hydrogens have been replaced by an oxo group. It has a role as an EC 1.14.13.39 (nitric oxide synthase) inhibitor, a human urinary metabolite, a biomarker, a plant metabolite and a mouse metabolite."}]