Pharma-Grade Tetramethylguanidine Base from Canada
Pharmaceutical-grade tetramethylguanidine meeting USP standards, under HTS 2925.29.70.00 as imine derivative. Chemically defined for drug synthesis intermediates. Excludes immunological products per chapter note.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Obtain FDA import alert clearance if for drug manufacture
• Certify GMP compliance in COA for pharma use
• Distinguish from finished APIs which may go to Chapter 30