18519-35-2 6,6'-(p-Phenylenebis(carbonylimino))bis(1-propylquinolinium) ditosylate Quinolinium, 6,6'-(p-phenylenebis(carbonylimino))bis(1-propyl-, ditosylate Quinolinium, 6,6'-(terephthaloyldiimino)bis(1-propyl-, di-p-toluenesulfonate