Pyridoxal 5'-Phosphate (PLP) from Canada
PLP, the active form of vitamin B6, functions as coenzyme for >140 enzymes. Though vitamin-related, classified HTS 2934.99.39.00 as heterocyclic phosphate per U.S. note 3.
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 vitamin activity equivalence testing data
• Stable as powder; reconstitute immediately before use
• Declare dietary supplement vs. research chemical use