[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a decenoic acid having the double bond at position 9. It has a role as a metabolite. It is a conjugate acid of a dec-9-enoate."}, {"from": "gpt", "value": "[C][=C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O]"}]