Quinidine Base from Canada
Quinidine base, the dextrorotatory cinchona alkaloid, precursor for antiarrhythmic drugs. Classified HTS 2939.20.00 as natural/reproduced cinchona alkaloid per full heading scope. Bulk powder for salt formation in pharma.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Chiral purity verification via polarimetry essential; DEA precursor monitoring applies; validate against BP/USP standards