1-(3-Dimethylaminopropyl)-4-(2-(1-naphthyl)vinyl)pyridinium bromide methobromide 63906-16-1 Pyridinium, 1-(3'-dimethylaminopropyl)-4-(2'-naphthylvinyl)-, bromide, methobromide Pyridinium, 4-(2-(2-naphthalenyl)ethenyl)-1-(3-(trimethylammonio)propyl)-, dibromide