Quinine Base Anhydrous from Canada
Anhydrous quinine base is the pure alkaloid isolated from cinchona, used to manufacture all quinine salts. Classified HTS 2939.20.0050 as other cinchona alkaloid. Reference standard purity >99%.
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
• Karl Fischer titration confirming <0.5% water
• TLC purity profile vs USP reference standard
• Batch genealogy tracing to cinchona bark source