N-methylnicotinate1-Methyl-3-pyridiniumcarboxylate1-Methylpyridinio-3-carboxylate1-methylnicotinate3-Carboxy-1-methylpyridinium hydroxide inner saltBetain nicotinateBetaine nicotinateCaffearinCaffearineCoffearinGynesineN'-MethylnicotinateN-MethylnicotinateN-methyl-nicotinateN-methylnicotinateNicotinic acid N-methylbetaineTrigenellineTrigonellinTrigonelline