[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][/C][=C][/C][C][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a methyl ketone that is nonan-2-one carrying a double bond at position 5. It has a role as a mammalian metabolite. It is a methyl ketone and an olefinic compound."}]