4,4'-BIS(TRIMETHYLSILYL)BIPHENYL

4,4'-DIBROMO-2,3,5,6,2',3',5',6'-OCTAMETHYL-BIPHENYL

4,4'-DIETHOXYBIPHENYL

4,4'-DIMETHYLBIANTHRONE

4,4'-Diphenylbenzophenone

4,4'-METHYLENEBIS(1-BUTYL-1-METHYL-3-PHENYLUREA)

4-NITROBENZYL PHENYL ETHER

4-NITROPHENYL N-(4-FLUOROPHENYL)CARBAMATE

4-NITROPHENYL-BETA-D-THIOGALACTOPYRANOSIDE

4,4'-METHYLENEBIS(O-(CARBAMOYL)CYCLOHEXANONE OXIME)

4,4'-OXYDIPHTHALONITRILE

4,4'-TRIMETHYLENEBIS(1-(N-(2,4-XYLYL)THIOCARBAMOYL)PIPERIDINE)

4,4-Bis(4-chlorophenyl)-3-(ethoxycarbonyl)-3-butenoic acid

4-OXO-4-((2-THIOXO-2,3-DIHYDRO-1,3-BENZOTHIAZOL-6-YL)AMINO)BUTANOIC ACID

4-oxo-4-phenoxybutanoic acid