Norephedrine (Norpseudoephedrine) Research Chemical from Canada
High-purity norephedrine hydrochloride (>99%) sold to research institutions studying sympathomimetic pathways. Classified HTS 2939.44.00.00 as synthetic alkaloid salt. Used in neuroscience and pharmacology structure-activity studies.
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
• Research chemicals need end-user statement; small quantities (<1g) still face full chemical control