1-(3-Dimethylaminopropyl)-4-styryl pyridinium bromide methobromide 21074-52-2 4-Styryl-1-(3-(trimethylammonio)propyl)pyridinium dibromide Pyridinium, 1-(3'-dimethylaminopropyl)-4-styryl-, bromide, methobromide Pyridinium, 4-styryl-1-(3-(trimethylammonio)propyl)-, dibromide