[{"from": "human", "value": "Describe this molecule. [C][Branch1][Branch1][C][C][C][=O][C][/C][=C][\\C][C@H1][Branch2][Ring1][Ring1][/C][=C][/C][=C][/C][=C][\\C@H1][Branch1][=Branch2][C][C][C][C][=Branch1][C][=O][O-1][O][O]"}, {"from": "gpt", "value": "The molecule is a leukotriene anion that is the conjugate base of 20-oxoleukotriene B4 arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It is an omega-oxo fatty acid anion, a leukotriene anion and a hydroxy monocarboxylic acid anion. It is a conjugate base of a 20-oxoleukotriene B4."}]