16758-33-1 23647-94-1 3,3'-(1,4-Phenylenebis(carbonylimino-4,1-phenylenecarbonylimino))bis(1-ethylpyridinium) NSC 101327 Pyridinium, 3,3'-(1,4-phenylenebis(carbonylimino-4,1-phenylenecarbonylimino))bis(1-ethyl- SN 5754