Abstract Four sulfanilamide derivatives N-[4-(phenylsulfamoyl) phenyl] acetamide (1), 4- amino-N-phenylbenzenesulfonamide (2), N-[4-(phenylsulfamoyl) phenyl] benzamide (3) and N-{4-[(3-chlorophenyl) sulfamoyl] phenylbenzamide (4) were synthesized and characterized by Infra-Red (IR), Nuclear Magnetic Resonance (NMR) and UV–visible (UV–Vis) spectra. Also Liquid Chromatographic (LCMS) and High Resolution Mass Spectrometric (HRMS) ...