Synonyms: BIS(2,4-DINITROPHENYL)-4,4'-BIPYRIDINIUM DICHLORIDE;1,1'-BIS(2,4-DINITROPHENYL)-4,4'-BIPYRIDINIUM DICHLORIDE;Bisdinitrophenylbipyridiniumdichloride;N,N`-Bis(2,4-dinitrophenyl)-4,4`-bipyridinium dichloride;BPDNP;11BIS24DINITROPHENYL44BIPYRIDINE11DIIUMDICHLORIDE;1,1''-BIS(2,4-DINITROPHENYL)-4,4''-BIPYRIDINIUM DICHLORIDE 93+%