1-(((4-((Hydroxyimino)methyl)pyridinio)methoxy)methyl)-3-methylthiopyridinium dichloride 27918-50-9 4'-Formyl-3-methylthio-1,1'-(oxydimethylene)dipyridinium dichloride oxime Pyridinium, 4'-formyl-3-methylthio-1,1'-(oxydimethylene)di-, dichloride, oxime