Cinchonine Sulfate from Mexico
Cinchonine sulfate is the sulfate salt of cinchonine alkaloid, used in analytical chemistry as alkaloid precipitant. Classified HTS 2939.20.0050 as other cinchona salt derivative. Typically 98%+ purity.
Duty Rate — Mexico → 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
• Include melting point range (255-260°C) verification
• Provide GHS classification for acute toxicity handling