[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the fatty acid ethyl ester of dec-9-enoic acid. It has a role as a metabolite. It is functionally related to a dec-9-enoic acid."}, {"from": "gpt", "value": "[C][C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][=C]"}]