Sulfamethazine from Canada
Sulfamethazine is a sulfonamide antibiotic with a heterocyclic pyrimidine ring, used in veterinary medicine for bacterial infections in livestock. Classified under HTS 2933.59.36.00 due to its aromatic structure and role as an anti-infective agent per chapter notes on nitrogen hetero-atom compounds. It qualifies as a separate chemically defined organic compound.
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
• Include veterinary drug import permit from USDA; test for residue limits if for food animals; document aromatic modification to prevent reclassification