[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][C@@H1][Branch2][Ring1][=C][/C][=C][/C@H1][C@@H1][Branch2][Ring1][=Branch1][C][C@H1][C@@H1][Ring1][Branch1][C][/C][=Branch1][#Branch2][=C][/C][C][C][C][=Branch1][C][=O][O][/O][Ring1][N][O][O]"}, {"from": "gpt", "value": "The molecule is a powerful vasodilator and inhibits platelet aggregation. It is biosynthesized enzymatically from prostaglandin endoperoxides in human vascular tissue. The sodium salt has been also used to treat primary pulmonary hypertension."}]