6-Methylnicotine
6-Methylnicotine (6-MN) is a nicotine analogue in which a methyl group is added at the 6-position of the pyridine ring. It has been identified in certain electronic cigarettes and oral pouch products marketed as nicotine alternatives, sometimes under the trade names Metatine (in disposables) and Nixodine-S (sold as a benzoate salt or free base).