4-(2,3-dibromo-4,5-dimethoxybenzylidene)-5-methyl-2-(3-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one

4-{4,5-dibromo-2-[(2,3,5,6-tetrafluoro-4-pyridinyl)oxy]phenoxy}-2,3,5,6-tetrafluoropyridine

4-(8,9-dibromo-3,5-dioxo-4-azatricyclo[5.2.1.0~2,6~]dec-4-yl)phenyl 2-methoxybenzoate

4-{[(3,5-dibromo-2-pyridinyl)amino]methylene}-5-methyl-2-(4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one

4-(2-{2,3-dibromo-4-[(2-chlorobenzyl)oxy]-5-methoxybenzylidene}hydrazino)benzoic acid

4-(2,5-dichlorophenoxymethyl)benzoic acid

4,5-dibromo-N-(5-ethyl-4-phenyl-1,3-thiazol-2-yl)-2-thiophenecarboxamide

4-(3,5-dibromo-4-hydroxybenzylidene)-5-methyl-2-(2-naphthyl)-2,4-dihydro-3H-pyrazol-3-one

4-(8,9-dibromo-3,5-dioxo-4-azatricyclo[5.2.1.0~2,6~]dec-4-yl)phenyl benzoate

4-{3,5-dibromo-4-[(2-methyl-2-propenyl)oxy]benzylidene}-2-(2-fluorophenyl)-1,3-oxazol-5(4H)-one

4,4'-dibromo-2'-(hydroxymethyl)-3,3'-bithiophene-2-carboxylic acid

4,5-dichloro-2-(4-fluorophenyl)pyridazin-3(2H)-one

4-{[(3,5-dibromo-2-pyridinyl)amino]methylene}-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

4,5-dibromo-N-[1-(4-ethoxyphenyl)ethyl]-2-thiophenecarboxamide

4,7-dibromospiro(tricyclo[5.2.1.0~2,6~]decane-10,2'-[1,3]-dioxolane)-3-one

4,5-dibromo-N-{4-ethyl-3-[(2-methoxyanilino)carbonyl]-5-methyl-2-thienyl}-2-thiophenecarboxamide

4,6-dianilino-1,3,5-triazine-2-carbaldehyde {3-[(2-chlorobenzyl)oxy]phenyl}hydrazone

4-[(4,6-dianilino-1,3,5-triazin-2-yl)oxy]-3-ethoxybenzaldehyde

4-(dibenzo[b,d]furan-3-ylsulfonyl)morpholine

4-(2,6-DICHLOROPHENYL)-2-METHYL-1LAMBDA4,4-THIAZINANE-1,3,5-TRIONE

4-(2,4-DICHLOROPHENYL)-1,2,3-THIADIAZOL-5-YL 4-METHYLPHENYL SULFOXIDE

4-[5-(2,4-DICHLOROPHENYL)-1H-PYRAZOL-3-YL]-1-[(2-NITROPHENYL)SULFONYL]PIPERIDINE

4-({[5-(2,4-dichlorophenyl)-1,3,4-thiadiazol-2-yl]amino}methylene)-2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one

4-[(2,4-dichlorophenyl)diazenyl]-5-methyl-2-[4-(4-methylphenyl)-1,3-thiazol-2-yl]-2,4-dihydro-3H-pyrazol-3-one

4-[(3,3-dichloro-2-propenyl)oxy]-2,6-dimethylquinoline

4,5-dichloro-1,3-diphenyl-1H-pyrazole

4-(2,4-dichlorophenyl)-1-(2,4-difluorophenyl)-3-(2-thienyl)-4,5-dihydro-1H-pyrazole

4-[6-(2,4-dichlorophenyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]-N,N-dimethylaniline

4-{5-(2,4-dichlorophenyl)-1-[4-(4-iodophenyl)-1,3-thiazol-2-yl]-4,5-dihydro-1H-pyrazol-3-yl}-2-fluorophenyl methyl ether

4-({[(2,6-dichlorobenzyl)sulfanyl]acetyl}amino)benzoic acid

4,6-DIBROMONICOTINAMIDE

4,5-DIBROMO-2-(2,5-DICHLOROPHENYL)-3(2H)-PYRIDAZINONE

4-(2,3-DICHLOROPHENOXY)-N,N-DIMETHYL-6-(TRIFLUOROMETHYL)-2-PYRIMIDINAMINE

4-[(2-(2,4-dichlorophenyl)-5-oxo-1,3-oxazol-4(5H)-ylidene)methyl]-2-ethoxyphenyl acetate

4-(8-CYCLOPENTYL-5-METHYL-7,8-DIHYDRO-6H-PYRAZOLO[1,5-A]PYRROLO[3,2-E]PYRIMIDIN-3-YL)-2-METHOXYPHENYL METHYL ETHER

4-(2-Cyclohexylethoxy)-N-(2,2-dimethylpropyl)benzenamine

4H-Thieno[2,3-b]thiopyran-4-one, 5,6-dihydro-, O-(cyclopropylcarbonyl)oxime 7,7-dioxide

4-[1-(2,4-DICHLOROPHENYL)-5-METHYL-1H-1,2,3-TRIAZOL-4-YL]PYRIMIDIN-2-AMINE

4-(3,4-DICHLOROPHENYL)-4-HYDROXY-1-METHYLPIPERIDINE

4-(2,4-DICHLOROBENZOYL)-N',N'-DIMETHYL-1H-PYRROLE-2-CARBOHYDRAZIDE

4,6-Dibromopteridine

4-(2,4-dichlorophenoxy)-N-[3-(methylsulfanyl)phenyl]butanamide

4-(2,6-DICHLOROBENZYL)PIPERAZINE-1-CARBALDEHYDE

4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-β]pyridin-11-one (Loratadine Impurity)

4-Deoxy-20-hydroxy-4-[2-(1-hydroxyethyl)-1-pyrrolidinyl]rifamycin

4,5-Dichloro-8-methyl-2-propylquinoline hydrochloride

4-(5,6-DICHLORO-1H-BENZIMIDAZOL-2-YL)BENZONITRILE

4,5-Diamino-2-bromo-1,8-dihydroxy-9,10-anthracenedione

4,4'-DIAMINO-2,2'-DI-(TRIFLUOROMETHYL)-DIPHENYLMETHANE

4,5-Dichloro-8-methoxy-2-methylquinoline

4,11-Diamino-2-[3-(2-methoxyethoxy)propyl]-1H-naphth[2,3-f]isoindole-1,3,5,10(2H)-tetrone

4,5-DIBENZYLOXY-2-METHYLACETOPHENONE

4,7-Dibromo-8-methyl-2-propylquinoline

4,5-Dibromo-2-(4-nitrophenoxy)phenol

4,5-DICHLORO-2,3-DIHYDRO-1H-INDEN-1-OL

4-(2,4-DICHLORO-5-FLUORO-PHENYL)-THIAZOL-2-YLAMINE

4-Octadecene-1,3-diol, 2-amino-, (2S,3R,4E)-, sulfate (2:1)

4,6-DICHLORO-2-(AMINOMETHYL)PYRIMIDINE

4,7-Dibromo-6-methyl-2-phenylquinoline

4,7-Dibromo-2,8-dimethylquinoline

4-(3,4-Dichlorophenyl)-3-buten-2-one

4,6-DICHLORO-2-(4-FLUOROPHENYL)-5-NITROPYRIMIDINE

4-[(3,4-dichlorobenzoyl)amino]-4-(3-methoxypropyl-(3-methylbutyl)carba moyl)butanoic acid

4,6-Dichloro-2-[(dimethylamino)methylene]-2,3-dihydro-1H-inden-1-one

4,7-dichloro-1H-imidazo[4,5-d]pyridazine

4-(2,4-dichlorophenoxy)-N-{4-[(isopropylamino)sulfonyl]phenyl}butanamide