4-(1,3-OXAZOL-5-YL)PHENYL ISOTHIOCYANATE

4-(1H-Pyrazol-1-yl)aniline

4-(1H-PYRAZOL-1-YL)BENZOYL CHLORIDE

4-(1H-PYRAZOL-1-YL)PHENYL ISOTHIOCYANATE

4-(1H-PYRROL-1-YL)BENZYLAMINE

4-(1-NAPHTHYLAMINO)-4-OXOBUT-2-ENOIC ACID

4-(2,3-DIHYDRO-1,4-BENZODIOXIN-6-YL)BUTANOIC ACID

4-(2,3-DIHYDROIMIDAZO[2,1-B][1,3]THIAZOL-6-YL)ANILINE

4-(2,4-DIFLUOROPHENOXY)-N'-HYDROXY-3-NITROBENZENECARBOXIMIDAMIDE

4-(2-Aminoethyl)benzenesulfonylfluoride hydrochloride

4-(2-CHLOROETHYL)ACETOPHENONE