Piperonal USP Reference Standard from Canada
Official USP piperonal reference standard for assaying pharmaceutical intermediates, packaged in amber vials. Precise fit for HTS 2932.93.00.00 as pure chemically defined heterocyclic.
Duty Rate — Canada → United States
14.8%
Rate breakdown
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
• Include USP certificate of analysis; temperature-controlled shipping; FDA reference standard protocols