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
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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