[{"from": "human", "value": "Could you provide a description of this molecule? [C][N][C][C][C][C@H1][Ring1][Branch1][C][=C][N][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. It has a role as a phytogenic insecticide, a teratogenic agent, a neurotoxin, an anxiolytic drug, a nicotinic acetylcholine receptor agonist, a biomarker, an immunomodulator, a mitogen, a peripheral nervous system drug, a psychotropic drug, a plant metabolite and a xenobiotic. It is a conjugate base of a (S)-nicotinium(1+). It is an enantiomer of a (R)-nicotine."}]