4-HYDROXY-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID N'-OCTANOYL-HYDRAZIDE

4-Iodo-1-methyl-1H-pyrazole-3-carboxylic acid

4-IODO-N-(2,2,2-TRICHLORO-1-(3-(4-METHOXY-PHENYL)-THIOUREIDO)-ETHYL)-BENZAMIDE

4-ME-5-PHENYL-2H-PYRAZOLE-3-CARBOXYLIC ACID (2,6-DICHLORO-BENZYLIDENE)-HYDRAZIDE

4-METHOXY-2,6-DIMETHYL-PYRANYLIUM, FLUORO-SULFATE

4-METHYL-5-PHENYL-2H-PYRAZOLE-3-CARBOXYLIC ACID (1-P-TOLYL-ETHYLIDENE)-HYDRAZIDE

4-METHYL-5-PHENYL-2H-PYRAZOLE-3-CARBOXYLIC ACID BENZYLIDENE-HYDRAZIDE

4-METHYL-N-(2-TRIFLUOROMETHYL-PHENYL)-BENZAMIDE

4-METHYL-N-(4-((1,3-THIAZOL-2-YLAMINO)SULFONYL)PHENYL)BENZAMIDE

4-NITROBENZOFURAZAN 3-OXIDE

4-TERT-BUTYL-2,6-DIMETHYL-PYRANYLIUM, TETRAFLUORO BORATE

4-TERT-BUTYL-N-(2-ETHOXYPHENYL)BENZAMIDE

4,4-DIMETHYL-1-PYRIDIN-3-YL-PENTAN-3-ONE

4,5-DINITRO-9-OXO-9H-FLUORENE-2,7-DISULFONIC ACID BIS-((FURAN-2-YLMETHYL)-AMIDE)

4,5DIHYDRO-1H-BENZO(G)INDAZOLE-3-CARBOXYLIC ACID (2-ME-3-PH-ALLYLIDENE)HYDRAZIDE