14101-73-6 4,4'-(Terephthaloylbis(imino-p-phenylene))bis(1-ethylpyridinium) di-p-toluenesulfonate NSC 103057 Pyridinium, 4,4'-(1,4-phenylenebis(carbonylimino-4,1-phenylene))bis(1-ethyl-, salt with 4-methylbenzenesulfonic acid (1:2) (9CI) Pyridinium, 4,4'-(terephthaloylbis(imino-p-phenylene))bis(1-ethyl-, di-p-toluenesulfonate