Sulfathiazole Sodium from Canada
Sulfathiazole sodium combines sulfonamide antibiotic with thiazole ring for broad-spectrum antibacterial activity. HTS 2935.90.4800 classification as sulfonamide anti-infective per Chapter 29 note (C)(1) for organic salts. Used historically in wound dressings and systemic infections.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Salt bridge stability data required to confirm pharmaceutical equivalence to free base
• Avoid retail packing; bulk drums only to maintain Chapter 29 API status
• Heavy metal specs critical due to thiazole synthesis impurities