Quinidine Sulfate from Canada
Quinidine sulfate is a cinchona alkaloid derivative containing a quinoline ring system, used primarily as an antiarrhythmic medication to treat heart rhythm disorders. It falls under HTS 2933.49.60.00 as a heterocyclic compound with nitrogen hetero-atom(s) only in a quinoline ring-system, specifically listed in additional U.S. note 3 to section VI for certain pharmaceutical intermediates and products. This classification applies to its pure chemical form without further fusion.
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 inclusion in additional U.S. note 3 to section VI and provide Certificate of Analysis; comply with FDA import requirements for bulk pharmaceuticals; ensure proper hazardous material declaration if shipped in quantities exceeding thresholds