[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][C@@H1][C@@H1][Branch1][Ring2][O][Ring1][Ring1][C][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a polyunsaturated fatty acid anion that is the conjugate base of (4Z,7Z,10Z,13Z,16Z,19S,20R)-19,20-epoxydocosapentaenoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a long-chain fatty acid anion and a docosanoid anion. It is a conjugate base of a (4Z,7Z,10Z,13Z,16Z,19S,20R)-19,20-epoxydocosapentaenoic acid. It is an enantiomer of a (4Z,7Z,10Z,13Z,16Z,19R,20S)-19,20-epoxydocosapentaenoate."}]