1,1'-((1,3,6,8-Tetrahydro-1,3,6,8-tetraoxobenzo(lmn)(3,8)phenanthroline-2,7-diyl)di-4,1-phenylene)bis(1-ethylpiperidinium) 37607-02-6 Bis(4-piperidinophenol)diimidonaphthalene-1,4,5,8-tetracarboxylic acid dibenzosulfoethylate Bis(p-piperidinophenol)diimidonaphthalene-1,4,5,8-tetracarboxylic acid dibenzosulfoethylate Iem 652 Piperidinium, 1,1'-((1,3,6,8-tetrahydro-1,3,6,8-tetraoxobenzo(lmn)(3,8)phenanthroline-2,7-diyl)di-4,1-phenylene)bis(1-ethyl- Ritebronii Ritebronium Ritetronium Ritetroniy