18519-40-9 6,6'-(p-Phenylenebis(carbonylimino))bis(1-(2-ethoxyethyl)quinolinium) ditosylate Quinolinium, 6,6'-(p-phenylenebis(carbonylimino))bis(1-(2-ethoxyethyl)-, ditosylate Quinolinium, 6,6'-(terephthaloyldiimino)bis(1-(2-ethoxyethyl)-, di-p-toluenesulfonate