[{"from": "human", "value": "Provide a description of this molecule. [C][Branch2][Ring1][C][C][C][C][/C][=C][\\C][C@@H1][Branch1][Branch2][C][C][C][C][C][C][O][O][C][C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a hydroxy fatty acid anion that is the conjugate base of (9Z,12R)-12,18-dihydroxyoctadecenoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a hydroxy monounsaturated fatty acid anion and an omega-hydroxy-long-chain fatty acid anion. It is a conjugate base of a (9Z,12R)-12,18-dihydroxyoctadecenoic acid."}]