Cinchonidine from Canada
Cinchonidine free base is the native alkaloid from cinchona bark, used as chiral catalyst precursor. HTS 2939.20.0050 covers this as other non-salt cinchona alkaloid. Oil-soluble form for asymmetric synthesis.
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
• Provide specific rotation [-100° to -115°] confirming natural origin
• GC-MS confirmation of quinuclidine ring system
• Stability data under inert atmosphere storage