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

N,N'-BIS-(4-METHOXY-PHENYL)-5-NITRO-ISOPHTHALAMIDE

N,N'-BIS-TRITYL-PENTANE-1,5-DIAMINE

N,N'-BIS(2-ETHOXYPHENYL)DECANEDIAMIDE

N,N'-BIS(2,4-DINITROPHENYL)-L-CYSTINE

N,N'-BIS(4-AMINOPHENYL)-1,3-BIS(AMINOMETHYL)BENZENE DIHYDROCHLORIDE

N,N′-Bis(4-iodophenyl)thiourea

N,N'-BIS(4,5-DICHLORO-2-METHYLPHENYL)ISOPHTHALAMIDE

N,N'-BIS(CARBOBENZYLOXY)-L-LYSYL-L-TYROSINAMIDE

N,N'-DI-M-TOLYL-ISOPHTHALAMIDE

N,N'-DIPIPERONYLIDENEETHYLENEDIAMINE

N,N'-DODECAMETHYLENEBIS(MALEAMIC ACID)

N,N'-HEXAMETHYLENEBIS(4-(METHOXYCARBONYL)PHENYLCARBAMATE)

N,N'-METHYLENEBIS(4-(METHYLAMINO)ANTIPYRINE)

N,N-BIS(2-HYDROXYETHYL)-N'-(4,5-DICHLORO-2-NITROPHENYL)ETHYLENEDIAMINE