Sulfadiazine Sodium from Canada
Sulfadiazine sodium is the water-soluble salt form of sulfadiazine, a sulfonamide antibiotic used for toxoplasmosis treatment and burn wound infections. Classified under HTS 2935.90.95.00 as an inorganic salt of an organic sulfonamide compound per Chapter 29 note on salts, taking the heading of the parent organic compound.
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
• Verify sodium salt form via HPLC certificate; pure base form may classify differently
• Include ICH stability data for sodium salts, which are more hygroscopic