dibromide salt of the N,N'-dimethyl-4,4'-dipyridinium dication

1,1''-[1,2-亚苯基二(亚甲基)]二-4,4'-联吡啶鎓二六氟磷酸盐

1-phenyl-4-pyridin-1-ium-4-ylpyridin-1-ium,dichloride

氯化-1-(苯甲基)吡啶翁

1-[4-(1-acetylpyridin-4-ylidene)pyridin-1-yl]ethanone