[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C@@H1][Branch2][Ring1][N][/C][=C][/C@H1][C@@H1][Branch2][Ring1][Ring2][C][C][=Branch1][C][=O][C@@H1][Ring1][=Branch1][C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins. It has a role as an oxytocic, a human metabolite and a mouse metabolite. It is a conjugate acid of a prostaglandin E2(1-)."}]