[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a fatty acid ester."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][C][=Branch1][C][=O][/C][=C][\\C][=Branch1][C][=O][O]"}]