[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][Branch1][Ring2][C][Ring1][Ring2][C][N][C][C][C@][C@@H1][C@H1][Branch2][Ring1][S][C][C][C@][Ring1][=Branch1][Branch2][Ring1][#Branch1][C@H1][Ring1][#Branch2][C][C][=C][Ring1][#Branch2][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][Ring1][#C][O][O].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of nalbuphine, a synthetic phenanthrene opioid with opiate agonist and antagonist effects, used to treat moderate to severe pain and provide preoperative and postoperative analgesia and sedation. Nalbuphine hydrochloride binds to kappa-, mu- and delta-opioid receptors but not to sigma-opioid receptors. This opioid exerts its analgesic actions primarily through kappa-opioid-receptor agonism and partially through mu-opioid receptor agonism."}]