[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][Branch2][Ring1][O][/C][=C][/C][=C][\\C][/C][=C][\\C][=C][\\C][=C][\\C@H1][C@@H1][Branch1][Ring2][O][Ring1][Ring1][C][C][C][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is an icosanoid anion that is the conjugate base of 5(S),6(S)-epoxy-18-hydroxy-(7E,9E,11Z,14Z,16E)-icosapentaenoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is an icosanoid anion, a hydroxy fatty acid anion and a long-chain fatty acid anion. It is a conjugate base of a 5(S),6(S)-epoxy-18-hydroxy-(7E,9E,11Z,14Z,16E)-icosapentaenoic acid."}]