4-(2-Hydroxyethyl)-1-piperazinecarboximidamide sulfate

4-(2-METHOXY-5-METHYLPHENYL)-1-(1-NAPHTHYLMETHYLENE)-3-THIOSEMICARBAZIDE

4-(2-THIENYLMETHYLENEAMINO)PHENYL ETHER

4-(2,3-DIMETHOXY-PH)-2,6-DI-ME-1,4-2H-PYRIDINE-3,5-DICARBOXYLIC ACID DI-ET ESTER

4-(2,4-DI-TERT-PENTYLOXY)ANILINE

4-(2,4-DICHLOROBENZYLIDENEAMINO)BENZOIC ACID

4-(2,4-Difluorophenyl)thiazol-2-ol

4-(2,4-XYLYL)SEMICARBAZIDE

4-(2,5-DIMETHOXY-BENZYLIDENE-HYDRAZINOCARBONYL)-1-(2-HO-ET)-PYRIDINIUM, CHLORIDE

4-(2,6-DICHLOROPHENYL)-2-ETHOXY-6-(2-METHOXYPHENYL)NICOTINONITRILE

4-(2,6-DITERT-BUTYL-4-THIOPYRYLIUMYL)PYRIDINIUM DITETRAFLUOROBORATE

4-(3-(1-ACETYLAMINO-2,2,2-TRICHLORO-ETHYL)-THIOUREIDO)-BENZOIC ACID METHYL ESTER

4-(3-(2,2,2-TRI-CL-1-(DI-MEO-BENZOYLAMINO)-ET)-THIOUREIDO)-BENZOIC ACID ME ESTER

4-(3-(2,2,2-TRICHLORO-1-NONANOYLAMINO-ETHYL)-THIOUREIDO)-BENZOIC ACID

4-(3-(3-(TRIFLUOROMETHYL)PHENYL)UREIDO)BENZOIC (4-BUTOXYBENZYLIDENE)HYDRAZIDE