1.For organic synthesis. P-toluenesulfonamide is mainly used for the synthesis of chloramine-T and sulfachlormycin (Tevenel).
2. Used in the synthesis of fluorescent dyes, the manufacture of plasticizers, synthetic resins, coatings, disinfectants and wood processing brighteners.
3. Mainly used as a toughening agent for synthesizing water-soluble melamine formaldehyde resin.
4. As a primary brightener in bright nickel plating. It is used for bright multi-layer nickel plating to make the coating bright and uniform. The general dosage is 0.2 to 0.3 g/L.