[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][/C][=C][\\C][/C][=C][\\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 (10Z,13Z,16Z,19Z,22Z)-octacosapentaenoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a (10Z,13Z,16Z,19Z,22Z)-octacosapentaenoic acid."}]