2H-Pyrido(3,4-b)indolium, 9,9'-(1,5-pentanediyl)bis(1,2-dimethyl-, dibromide 63765-63-9 9,9'-(1,5-Pentanediyl)bis(1,2-dimethyl-2H-pyrido(3,4-b)indolium bromide) 9,9'-Pentamethylenebis(1,2-dimethyl-2H-pyrido(3,4-beta)indolium) dibromide