Pharmaceutical Grade o-Toluenesulfonamide USP from China
Ultra-pure o-Toluenesulfonamide meeting USP standards for pharmaceutical intermediate synthesis, particularly in sulfonamide antibiotic production. Falls under HTS 2935.90.1500 as a chemically defined sulfonamide of Chapter 29, not excluded under note 2(e) for immunological products. Used in APIs before final formulation.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include USP/EP certificate of analysis and FDA Drug Master File reference for seamless clearance
• Segregate from technical grades in documentation to prevent averaging purity claims