Cinchonine Base from Canada
Cinchonine base, the free alkaloid from cinchona bark, used in stereoselective organic reactions. Qualifies for HTS 2939.20.00 as a natural cinchona alkaloid, chemically defined per chapter notes. Research quantities imported for asymmetric catalysis.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• TSCA inventory listing required for US research use; provide melting point (260°C) specs; small package sizes reduce shipping risks