1-butyl-4-(1-butylpyridin-1-ium-4-yl)pyridin-1-ium,dibromide

1-methyl-4-(1-methylpiperidin-4-yl)piperidine

4,4’-联吡啶二盐酸盐

4,4'-二哌啶

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