4,2′-Dihydroxy-3,4′,6′-trimethoxychalcone

4,4'-(1,3-PROPANEDIYLDI-4,1-PIPERDINE-DIYL)-BIS(7-NITRO-QUINAZOLINE)

4,4'-(2,2-DICHLOROETHENE-1,1-DIYL)BIS(2-NITROPHENOL)

4,4'-(diphenylmethylene)diphenol

4,4'-(PHENYLMETHYLENE)BIS(1,5-DIMETHYL-2-PHENYL-1H-PYRAZOL-3(2H)-ONE) HYDROCHLORIDE

4,4'-bis[(methoxycarbonyl)amino]-1,1'-biphenyl

4,4'-BIS(1-CYCLOHEXEN-1-YL)BIPHENYL

4,4'-BIS(3-(3-(2-METHYLPIPERIDINO)PROPYL)UREIDO)DIPHENYLMETHANE

4,4'-BIS(CYCLOPROPYLUREIDO)-3,3'-DIMETHOXYBIPHENYL

4,4'-BIS(TRIBENZYLSILYL)BIPHENYL

4,4'-DIBENZAMIDO-1,1'-DIANTHRIMIDE

4,4'-DICHLORO-3-METHYL-3'-NITROBENZANILIDE

4,4′-Dimethyl-3-nitrobenzophenone

4,4'-DINITROBIBENZYL

4,4'-DITHIOBIS(N-(4-ISOPROPYLBENZYLIDENE)ANILINE)