Trifluridine Pure Powder from Canada
Trifluridine, a trifluorinated thymidine analog, contains a pyrimidine ring with only nitrogen hetero-atoms, fitting HTS 2933.59.95.00 for other such compounds. This antiviral API is a separate chemically defined organic compound per Chapter 29 notes. Primarily used in eye drop formulations.
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
• Provide NMR data verifying nitrogen-only heterocycle to prevent Chapter 29 note exclusions
• Check REACH/ TSCA registration for US import