Anhydrous Tolmetin Sodium for API Manufacturing from Canada
Anhydrous tolmetin sodium is imported as a key intermediate for producing anti-inflammatory medications, featuring a nitrogen-containing heterocyclic ring system. HTS 2933.99.55.30 applies due to its drug status as a CNS-affecting analgesic. Supplied in drums for large-scale pharma production.
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
• Ensure transport in moisture-proof packaging to maintain anhydrous form; provide ICH stability studies
• Common pitfall: incorrect declaration as dihydrate leading to duty disputes