4,4'-DICHLOROAZOXYBENZENE

4,4'-DIHYDROXY-3,3'-DINITROBENZOPHENONE

4,4'-Dimethoxychalcone

4,4'-DIMETHYLOCTAFLUOROBIPHENYL

4,4'-METHYLENEBIS(N-(2-CHLOROBENZYLIDENE)ANILINE)

4,4'-METHYLENEBIS(N-(4-CHLOROBENZYLIDENE)ANILINE)

4,4'-METHYLENEBIS(N-CINNAMYLIDENEANILINE)

4,4'-SULFONYLBIS(2-NITROPHENOL)

4,4'-TRIMETHYLENEBIS(1-(2-BENZOTHIAZOLYL)PIPERIDINE)

4,4-(Dimethylcyclohex-2-enone)-2-boronic acid, pinacol ester

4,4-DIETHOXY-1-(TOLUENE-4-SULFONYL)-PIPERIDINE

4β-hydroxycholesterol-d7

4,4,8,8-TETRAMETHYL-3,5,7,9-TETRAOXASPIRO(5.5)UNDECANE

4,5-DICHLORO-3-(DICHLOROMETHYL)-1-PHENYLPYRAZOLE

4,5-DIETHYL-6-(IODOMETHYL)-2-(TRIBUTYLSTANNYL)-1,3-DIOXANE