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

4,5-Dichloro-2-(2-phenoxyethyl)pyridazin-3(2H)-one

4,5-DICHLORO-N-METHYL-2-NITROANILINE

4,5-DIHYDRO-1H-BENZO(G)INDAZOLE-3-CARBOXYLIC ACID (3-HO-BENZYLIDENE)-HYDRAZIDE

4,5-DIHYDRO-3H-4-AZA-CYCLOHEPTA(2,1-A,3,4-A')DINAPHTHALENE

4,5-DIHYDROXY-2,3,4,5-TETRAPHENYL-CYCLOPENT-2-ENONE

4,5-DIMETHYL-2-NITROPHENYL ISOCYANATE