[{"from": "human", "value": "Could you give me a brief overview of 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][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a polyunsaturated fatty acid anion that is the conjugate base of (8Z,11Z,14Z,17Z,20Z)-hexacosapentaenoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a very long-chain fatty acid anion and a polyunsaturated fatty acid anion. It is a conjugate base of an (8Z,11Z,14Z,17Z,20Z)-hexacosapentaenoic acid."}]