[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][=Branch1][C][=O][/C][=C][/C@H1][C@@H1][Branch2][Ring1][Ring2][C][C@@H1][Branch1][#C][C@@H1][Ring1][Branch1][C][C][C][C][C][C][C][=Branch1][C][=O][O-1][O][O]"}, {"from": "gpt", "value": "The molecule is a prostaglandin carboxylic acid anion that is the conjugate base of 15-ketoprostaglandin F1alpha, obtained by deprotonation of the carboxy group; major species at pH 7.3. It has a role as a human metabolite. It is a conjugate base of a 15-ketoprostaglandin F1alpha."}]