4'-Cyclohexylcarbonyl-2-formyl-1,1'-(oxydimethylene)dipyridinium diiodide 2-oxime 71752-87-9 83972-76-3 BDB-27 Pyridinium, 4'-(cyclohexylcarbonyl)-1,1'-(oxydimethylene)di-, diiodide, 2-oxime Pyridinium, 4'-cyclohexylcarbonyl-2-formyl-1,1'-(oxydimethylene)di-, diiodide, 2-oxime