1-((4-(Dimethylamino)pyridinio)methoxymethyl)-4-((hydroxyimino)methyl)pyridinium dichloride 27918-54-3 4-(Dimethylamino)-4'-formyl-1,1'-(oxydimethylene)dipyridinium dichloride oxime AD 126 Pyridinium, 1-((4-(N,N-dimethylamino)pyridinio)methoxymethyl)-4-formyl-, dichloride, oxime Pyridinium, 4-(dimethylamino)-4'-formyl-1,1'-(oxydimethylene)di-, dichloride, oxime