[{"from": "human", "value": "Provide a description of this molecule. [C][N+1][Branch1][#C][C][C][C][C@H1][Ring1][Branch1][C][=C][N][=C][C][=C][Ring1][=Branch1][O-1]"}, {"from": "gpt", "value": "The molecule is a nicotine N(1')-oxide resulting from the oxidation of the pyrrolidine nitrogen of (S)-nicotine; major species at pH 7.3. It is functionally related to a (S)-nicotine."}]