2,2’-二甲基-4,4’-联吡啶

2,6-dimethyl-4-(2-methylpyridin-4-yl)pyridine

2-methyl-4-pyridin-4-ylpyridine

1-benzyl-4-pyridin-1-ium-4-ylpyridin-1-ium,dibromide

dibenzylviologen dibromide