25892-74-4 4-((Hydroxyimino)methyl)-1-(3-(4-methylpyridinio)propyl)pyridinium dibromide 4-Formyl-4'-methyl-1,1'-trimethylenebis(pyridinium bromide) oxime BDB 20 Pyridinium, 4-((hydroxyimino)methyl)-1-(3-(4-methylpyridinio)propyl)-, dibromide Pyridinium, 4-formyl-4'-methyl-1,1'-trimethylenedi-, dibromide, oxime R 84