3,4-Dibromo-1H-pyrazolo[4,3-c]pyridine

3,4-DICHLORO-2'-HYDROXY-5'-NITROBENZANILIDE

3,4-Dichloro-7-fluoroquinoline

3,4-DICHLORO-N-(2,4-DICHLOROBENZYL)BENZAMIDE

3,4-DICHLOROHIPPURIC (3-FLUOROBENZYLIDENE)HYDRAZIDE

3,4-DICHLOROPHENYL N-(2,4,5-TRICHLOROPHENYL)CARBAMATE

3,4-Diethyl-1H-pyrazol-5-amine

3,4-DIHYDRO-1(2H)-QUINOLINECARBALDEHYDE N-PHENYLTHIOSEMICARBAZONE

3,4-DIHYDRO-3'-(4-PYRIDYL)-1-OXOSPIRO(NAPHTHALENE-2(1H),2'-OXIRANE)

3,4-dihydroquinazoline

3,4-dimethoxy-N',N'-dimethylbenzohydrazide

3,4-DIMETHYL-1-PENTENE

3,4-DIMETHYL-2,5-PYRROLEDICARBOXALDEHYDE

3,5-DICHLORO-N,N-DIMETHYLANILINE

3,5-DIETHYL-3,4,5,6-TETRAHYDRO-2H-1,3,5-THIADIAZINE-2-THIONE