Pseudoephedrine Impurity Standard (Norephedrine HCl) from Canada
Certified reference material of norephedrine hydrochloride used as impurity standard in pseudoephedrine quality control testing. Classified under HTS 2939.44.00.00 as pure norephedrine salt for laboratory use. Essential for HPLC method validation in pharmaceutical QC labs.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%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
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include certificate of analysis with assigned purity value; small package lab chemicals still need TSCA notification
• Avoid bulk classification for research quantities