Articaine Hydrochloride from Canada
Articaine hydrochloride is a thiophene-based aromatic amino-amide with sulfonate oxygen function, included in HTS 2922.50.3500 under U.S. note 3 for dental anesthetics. Its structure qualifies as amino-compound with oxygen function per chapter scope.
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
• Declare sulfur content accurately; obtain prior CBP binding ruling for note 3
• Common issue: classification as organo-sulfur under 2930 if thiophene emphasized