4-[(4-nitrophenyl)sulfonylamino]benzenesulfonamide

phenyl-(4-sulfamoylphenyl)arsinic acid

[4-(chlorosulfamoyl)phenyl]-phenylarsinic acid

4-(3-(4-sulfamoylphenyl)thioureido)benzoic acid

4-[(3-hydroxyphenyl)methylideneamino]benzenesulfonamide