[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a fatty acid methyl ester resulting from the formal condensation of the carboxy group of octanoic acid with the hydroxy group of methanol. It has a role as a metabolite. It is a fatty acid methyl ester and an octanoate ester."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C]"}]