N,N'-BIS-(4-METHYL-3-NITRO-BENZYL)-ISOPHTHALAMIDE

N,N'-BIS-TRITYL-PROPANE-1,3-DIAMINE

N,N'-BIS(2-ETHOXYETHOXYCARBONYL)-4-METHYL-1,3-PHENYLENEDIAMINE

N,N'-BIS(2-METHYLCYCLOHEXYLOXYCARBONYL)-4-METHYL-1,3-PHENYLENEDIAMINE

N,N'-BIS(3-NITROPHENYL)TEREPHTHALAMIDE

N,N'-BIS(4-CHLORO-3-NITROPHENYL)OXAMIDE

N,N′-Bis(4-iodophenyl)thiourea

N,N'-BIS(4-PENTYLOXYBENZYLIDENE)-1,4-PHENYLENEDIAMINE

N,N'-BIS(CARBOBENZYLOXY)-L-LYSYL-L-ASPARTIC ACID DIBENZYL ESTER

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

N,N'-DI-NAPHTHALEN-1-YL-TEREPHTHALAMIDE

N,N'-DI-TERT-BUTYL-ISOPHTHALAMIDE

N,N'-DODECAMETHYLENEBIS(2,4,6-TRINTROANILINE)

N,N'-ETHYLENEBIS(N-METHYL-P-TOLUENESULFONAMIDE)

N,N'-HEXAMETHYLENEBIS(4-METHYL-1-PIPERIDINECARBOXAMIDE)