Pharmaceutical Grade o-Toluenesulfonamide USP from Mexico
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 — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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