[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an omega-hydroxy fatty acid anion that is the conjugate base of 20-HETrE, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is an icosanoid anion, a hydroxy polyunsaturated fatty acid anion and an omega-hydroxy-long-chain fatty acid anion. It is a conjugate base of a 20-HETrE."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][C][C][C][O][C][C][C][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O-1]"}]