4,4'-CYCLOHEXYLIDENEBIS-(N,N-DIMETHYLANILINE)

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

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

4,4'-DIMETHYL-BICYCLOHEXYL-3,6,3',6'-TETRAENE-2,5,2',5'-TETRAONE

4,4'-DINITROSTILBENE-2,2'-DISULFONIC ACID, DISODIUM SALT

4,4'-METHYLENEBIS(N-(4-(DIMETHYLAMINO)BENZYLIDENE)ANILINE)

4,4'-METHYLENEBIS(PHENYLHYDRAZINE) HYDROCHLORIDE HYDRATE

4,4'-SULFONYLBIS(N-(5-INDANYLMETHYLENE)ANILINE)

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

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

4E,8Z-Sphingadiene

4,5-DICHLORO-2-((5,6,7-TRIMETHOXY-BENZOTHIAZOL-2-YLIMINO)-METHYL)-PHENOL

4,5-DIDEOXY-2-C-[(Z)-2-IODOETHENYL]-3-O-(4-METHOXYBENZYL)-1,2-O-(1-METHYLETHYLIDENE)-D-ERYTHRO-PENT-4-ENITOL

4,5-DIHYDRO-3-METHYL-2-(METHYLTHIO)-THIAZOLIUM IODIDE

4,5-DIHYDROXY-1,3-DIMETHYL-4,5-DIPHENYL-IMIDAZOLIDIN-2-ONE