4,4'-BIS(4-ETHOXYPHENYLAZO)-3,3'-DISULFOSTILBENE DISODIUM SALT

4,4'-diamino[1,1'-biphenyl]-2,2'-disulfonic acid

4,4'-DICHLORO-2',5'-DIMETHOXYBUTYRANILIDE

4,4'-DIFLUORO-2,2'-DINITROBIBENZYL

4,4′-Dimethoxy-2′-hydroxychalcone

4,4'-DIMETHYLENEBIS(ETHYL BENZOATE)

4,4'-DITHIOBIS((1-BETA-D-RIBOFURANOSYL-2(1H)-PYRIMIDINONE))

4,4'-METHYLENEBIS(N-(3,4-(METHYLENEDIOXY)BENZYLIDENE)ANILINE)

4,4'-METHYLENEBIS(N-(N-(2-BENZOTHIAZOLYL)CARBAMOYL)ANILINE)

4,4'-STILBENEDICARBONYL CHLORIDE

4,4'-TETRAMETHYLENEBIS(ACETOPHENONE)

4,4',4''-METHANETRIYLTRIS(2,6-DI-TERT-BUTYLPHENOL)

4,4-DICHLORO-1,1-DIMETHYL-3-BUTEN-1-YL ACETATE

4,4-DIMETHYL-1-(2-METHYL-1,3-DIOXOLAN-2-YL)-6-HEPTEN-3-ONE

4H-CYCLOPENTAPYRAZOLE-3-CARBOXYLIC ACID (3-ETHOXY-4-HO-BENZYLIDENE)-HYDRAZIDE