Cinchonine Hydrochloride from Mexico
Cinchonine hydrochloride is the hydrochloride salt of cinchonine alkaloid from cinchona bark, used as a precipitating agent and in resolution of racemates. Classified HTS 2939.20.0050 as other cinchona salt derivative. High purity for laboratory use.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Supply optical rotation data [+228° to +234°] confirming natural L-cinchonine
• Include batch-specific impurity profile (<0.5% cinchonidine)
• Declare intended laboratory vs pharmaceutical use for proper documentation