Synonyms: HS 4;Bis(2-hydroxyiminomethylpyridinium-1-methyl)ether dichloride;Pyridinium, 1,1'-(oxydimethylene)bis(2-formyl-, dichloride, dioxime;Bis((hydroxyimino-methyl)-pyridinium-(1)-methyl)-aether-dichlorid [German];AC1NUU0N;LS-132831;Bis((hydroxyimino-methyl)-pyridinium-(1)-methyl)-aether-dichlorid;Pyridinium, 1,1'-(oxybis(methylene))bis(2-((hydroxyimino)methyl)-, dichloride;Pyridinium, 1,1'-(oxybis(methylene))bis(2-((hydroxyimino)methyl)-, dichloride (9CI);34211-26-2;oxo-[(E)-[1-[[(2E)-2-(oxoazaniumylmethylidene)pyridin-1-yl]methoxymethyl]pyridin-2-ylidene]methyl]azanium dichloride