4,4'-(1,4-PHENYLENE)BIS(3,3-DIP-TOLYLOXETAN-2-ONE)

4,4'-(2,2-DICHLOROETHENE-1,1-DIYL)BIS(2,6-DINITROPHENOL)

4,4′-(Heptane-2,2-diyl)diphenol

4,4'-(phenylmethylene)diphenol

4,4''-BIS-BROMOMETHYL-(1,1',3',1'')TERPHENYL

4,4'-BIS(2-(TRIFLUOROMETHYL)PHENYLUREIDO)-3,3'-DIMETHYLBIPHENYL

4,4'-BIS(3-CHLOROPHENYLUREIDO)-3,3'-DIMETHYLBIPHENYL

4,4'-BIS(DIMETHYLAMINO)OXANILIDE

4,4'-BIS(TRIFLUOROMETHYL)BENZANILIDE

4,4'-DIBROMO-1,1'-BINAPHTHYL

4,4'-DICHLORODIPHENYLDISULFIMIDE

4,4'-DIMETHYLBENZOIN

4,4′-Dioxo-1,1′,4,4′-tetrahydro-8,8′-biquinoline-2,2′-dicarboxylic acid

4,4'-DITHIOBIS(N-CINNAMYLIDENEANILINE)

4-NITROBENZYL N-(4-FLUORO-2-NITROPHENYL)CARBAMATE