[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][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][O]"}, {"from": "gpt", "value": "The molecule is a polyunsaturated fatty acid anion that is the conjugate base of 12(S)-HPE(5,8,10)TrE, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is functionally related to a (5Z,8Z,11Z)-icosatrienoate. It is a conjugate base of a 12(S)-HPE(5,8,10)TrE."}]