N,N'-BIS-(3,4-DICHLORO-PHENYL)-TEREPHTHALAMIDE

N,N'-BIS-(4-IODO-PHENYL)-ISOPHTHALAMIDE

N,N'-BIS-(2-CHLORO-PHENYL)-ISOPHTHALAMIDE

N,N'-BIS(2,4-DICHLOROBENZYLIDENE)ETHYLENEDIAMINE

N,N'-BIS(3-CHLOROPROPIONYL)ETHYLENEDIAMINE

N,N'-BIS(4-(METHYLTHIO)PHENYL)ISOPHTHALAMIDE

N,N'-BIS(2-ETHYLPHENYL)ISOPHTHALAMIDE

N,N'-BIS(4-CHLOROPHENOXYCARBONYL)-4-METHYL-1,3-PHENYLENEDIAMINE

N,N'-BIS(4-HYDROXYPHENYL)-1,4-DIAZABUTADIENE

N,N'-BIS(5-CHLORO-2-METHYLPHENYL)ISOPHTHALAMIDE

N,N'-BIS(CARBOBENZYLOXY)-L-LYSYLGLYCINAMIDE

N,N'-DI-1-NAPHTHYLFORMAMIDINE

N,N'-DI(TRITYL)-2-BUTENE-1,4-DIAMIDE

N,N'-DIBENZYLIDENEETHYLENEDIAMINE

N,N'-DIETHYL-2-BUTYNE-1,4-DIAMINE