N,N'-BIS(2-HYDROXY-5-METHYLPHENYL)-1,4-DIAZABUTADIENE

N,N'-BIS(3-CHLORO-4-METHYLPHENYL)FORMAMIDINE

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

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

N,N'-Bis(benzyloxycarbonyl)guanidine

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

N,N'-DI-P-TOLYL-3,6-BIS-P-TOLYLIMINO-CYCLOHEXA-1,4-DIENE-1,4-DIAMINE

N,N'-DIVANILLYLIDENEETHYLENEDIAMINE

N,N'-ETHYLENEBIS(N-(CHLOROMETHYL)-2,6-DIMETHOXYBENZAMIDE)

N,N'-HEXAMETHYLENEBIS(BENZAMIDE)

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

N,N-Bis(2-iodoethyl)-1-naphthalenamine

N,N-diallyl-2-phenylacetamide

N,N-Dibenzyl-2,2-diethoxyethanamine

N,N-DIBUTYL-2,2-DIMETHYLPROPIONAMIDE