1-methyl-4-[2-(4-nitrophenyl)ethenyl]pyridin-1-ium,iodide

1-methyl-4-[2-(3-nitrophenyl)ethenyl]pyridin-1-ium,iodide

4-苯基吡啶

2-methoxy-4-[(E)-2-(1-methylpyridin-1-ium-4-yl)ethenyl]phenol,iodide

4-(4-二乙氨基苯乙烯基)-1-甲基碘化吡啶