2-[4-(二甲氨基)苯乙烯基]-1-甲基吡啶碘2-Di-1-ASP2-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide2-Di-1-ASP2M2PM2-[p-(dimethylamino)styryl]-1-methylpyridinium iodide2-{(E)-2-[4-(dimethylamino)phenyl]vinyl}-1-methylpyridinium iodideDASPI2-(4-(dimethylamino)styryl)-1-methylpyridinium2-[4-(dimethylamino)styryl]-1-methylpyridinium iodide