1-(((4-((Hydroxyimino)methyl)pyridinio)methoxy)methyl)-3-iodo-pyridinium dichloride 27918-52-1 4'-Formyl-3-iodo-1,1'-(oxydimethylene)dipyridinium dichloride oxime AD 116a Pyridinium, 4'-formyl-3-iodo-1,1'-(oxydimethylene)di-, dichloride, oxime