1-(4-methylphenyl)-4-[1-(4-methylphenyl)pyridin-1-ium-4-yl]pyridin-1-ium,dichloride

1-(3-methylbutyl)-4-[1-(3-methylbutyl)pyridin-1-ium-4-yl]pyridin-1-ium,dibromide

N-(Perfluorobutanoyl)-4,4'-bipyridin-1-ium-1-aminide

2-氯-4,4'-联吡啶

4-(4-吡啶基)吡啶-2-胺