Chloroquine Phosphate USP from Canada
Chloroquine phosphate is a 4-aminoquinoline compound used for malaria prophylaxis and treatment, featuring a quinoline ring with chlorine substitution. It qualifies for HTS 2933.49.70.00 as a heterocyclic nitrogen compound with quinoline structure, imported as pure API for drug formulation. Halogenated quinoline derivatives are included per chapter notes.
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
• FDA DMF registration required for APIs; provide impurity profile showing quinoline purity >99%
• Declare phosphate salt formation explicitly; customs applies Chapter 29 note (C) for organic salts
• Avoid pitfall of bulk packaging resembling finished drugs; use industrial drums, not consumer packs