[{"from": "human", "value": "What can you tell me about this molecule? [C][N][Branch2][Ring2][=Branch2][C][C][C][C][Branch1][=Branch2][C][=C][N][=C][C][=C][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][Ring1][Ring2][C@H1][Branch1][S][C@@H1][Branch1][N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch1][C][=O][O][O][O][O][N][=O]"}, {"from": "gpt", "value": "The molecule is a non-carcinogenic and detoxified glucuronidated form of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (nicotine-derived nitrosamine alcohol; NNAL), which is the primary metabolite of the potentially carcinogenic nitrosamine 4-methylnitrosamino-1,3-pyridyl-1-butanone (nicotine-derived nitrosamine ketone; NNK). NNAL-gluconuronide is detected in the urine of subjects exposed to tobacco products."}]