[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][C][C][C@@H1][Branch2][Ring1][S][/C][=C][/C@H1][C@@H1][Branch2][Ring1][Branch2][C][C@@H1][Branch2][Ring1][C][C@@H1][Ring1][Branch1][C][C][=Branch1][C][=O][C][C][C][C][C][=Branch1][C][=O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a form of prostaglandin F1alpha that has been modified with a keto group at position 6. 6-Ketoprostaglandin F1alpha (6-ketoPGF1a) is an inactive metabolite derived from prostaglandin I2 (PGI2). The concentration of 6-ketoPGF1a in a sample may be correlated with the levels of PGI2 synthesis. 6-KetoPGF1a levels are elevated in certain types of cancers."}]