[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a fatty acid methyl ester of 10-undecenoic acid. It has a role as a metabolite. It is functionally related to a 10-undecenoic acid."}, {"from": "gpt", "value": "[C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][=C]"}]