16758-33-1 NSC101327 Pyridinium, 3,3'-[1,4-phenylenebis(carbonylimino-4,1-phenylenecarbonylimino)]bis[1-ethyl-, salt with 4-methylbenzenesulfonic acid (1:1) Pyridinium, 3,3'-[terephthaloylbis(imino-p-phenylenecarbonylimino)]bis[1-ethyl-, di-p-toluenesulfonate