18519-63-6 6,6'-(p-Phenylenebis(methylenecarbonylimino))bis(1-butylquinolinium) ditosylate Quinolinium, 6,6'-(p-phenylenebis(methylenecarbonylimino))bis(1-butyl-, di-p-toluenesulfonate Quinolinium, 6,6'-(p-phenylenebis(methylenecarbonylimino))bis(1-butyl-, ditosylate