Sulfanilamide from Canada
Sulfanilamide is the foundational sulfonamide antibiotic, used in vaginal creams and as a diagnostic agent. Classified in HTS 2935.90.75.00 per additional U.S. note 3 to section VI for listed sulfonamides. This simple organic compound is imported for pharmaceutical and research purposes.
Duty Rate — Canada → United States
110%
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
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Reference chapter note on chemically defined compounds; provide synthesis pathway if requested; avoid retail packaging to stay in bulk chemical classification