[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a unsaturated fatty acid anion that is the conjugate base of gadoleic acid, formed by deprotonation of the carboxylic acid group. It is an unsaturated fatty acid anion, an icosanoid anion and a long-chain fatty acid anion. It is a conjugate base of a gadoleic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][/C][=C][\\C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]"}]