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

N,N'-BIS(4-(ETHOXYCARBONYL)PHENYL)-1,10-DECANEDIAMIDE

N,N'-BIS(4-FLUOROPHENYL)DECANEDIAMIDE

N,N'-BIS(4-METHOXYPHENYL)ISOPHTHALAMIDE

N,N'-BIS(5,6-DIMETHOXY-1,3-BENZOTHIAZOL-2-YL)IMIDOFORMAMIDE

N,N'-BIS(CARBOBENZYLOXY)-L-LYSYL-L-ISOLEUCINE METHYL ESTER

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

N,N'-DI-P-TOLYL-ISOPHTHALAMIDE

N,N'-ditritylcarbodiimide

N,N'-DODECAMETHYLENEBIS(MALEAMIC ACID)

N,N'-HEXAMETHYLENEBIS(2-CHLOROETHYL CARBAMATE)

N,N'-HEXAMETHYLENEBIS(METHYL SUCCINAMATE)

N,N-Bis(2-ethoxyethyl)-2-ethylhexanamide

N,N-BIS(2-HYDROXYETHYL)ETHYLENEDIAMINE DIHYDROCHLORIDE

N,N-BIS(TRIMETHYLSILYL)-2,3,4,5,6-PENTAFLUOROANILINE