[{"from": "human", "value": "Describe this molecule. [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 (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It has a role as a human metabolite. It is a docosahexaenoate and a (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoyl derivative. It is a conjugate base of an all-cis-docosa-4,7,10,13,16,19-hexaenoic acid."}]