(2Z)-2-hydroxyimino-1-phenyl-2-pyridin-1-ium-1-ylethanone,bromide

4-acetamido-2-acetyloxybenzenesulfonic acid,pyridine

1-(6-pyridin-1-ium-1-ylhexyl)pyridin-1-ium,dibromide

2-(1-pyridin-1-ium-1-ylpropan-2-ylideneamino)guanidine

N-(3-氧代-1-苯基-丁烷-2-基)乙酰胺