18519-47-6 6,6'-((2-Aminoterephthaloyl)diimino)bis(1-ethylquinolinium) di-p-toluenesulfonate 6,6'-(2-Amino-1,4-phenylenebis(carbonylimino))bis(1-ethylquinolinium) ditosylate Quinolinium, 6,6'-((2-aminoterephthaloyl)diimino)bis(1-ethyl-, di-p-toluenesulfonate