[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a polyunsaturated fatty acid anion that is the conjugate base of 12(S)-HHTrE, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a long-chain fatty acid anion and a hydroxy polyunsaturated fatty acid anion. It is a conjugate base of a 12S-HHTrE."}, {"from": "gpt", "value": "[C][C][C][C][C][C@@H1][Branch1][S][/C][=C][/C][=C][/C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O-1][O]"}]