[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a hydroxy fatty acid anion that is the conjugate base of 3-hydroxyicosanoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a long-chain fatty acid anion, a 3-hydroxy fatty acid anion and a hydroxy fatty acid anion 20:0. It is functionally related to an icosanoate. It is a conjugate base of a 3-hydroxyicosanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][O]"}]