1,1'-(Oxybis(methylene))bispyridinium dichloride 1,1'-(Oxydimethylene)bis(pyridinium chloride) (7CI) 1,1'-(Oxydimethylene)dipyridinium dichloride 16089-85-3 Pyridinium 1,1'-(oxydimethylene)di-, dichloride Pyridinium, 1,1'-(oxybis(methylene))bis-, dichloride (9CI) T-4925