[{"from": "human", "value": "Provide a brief overview of this molecule. [C][N+1][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a pyridinium ion consisting of nicotinic acid having a methyl substituent on the pyridine nitrogen. It has a role as a plant metabolite. It is functionally related to a nicotinic acid. It is a conjugate acid of a N-methylnicotinate."}]