Sinapic Acid 95% Powder from Mexico
Sinapic acid (4-hydroxy-3,5-dimethoxycinnamic acid) qualifies as hydroxycinnamic acid under HTS 2918.29.2000. Used in nutraceuticals and as biosynthetic precursor, this 95% powder meets chapter requirements for chemically defined compounds.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• HPLC chromatogram required showing sinapic acid peak >95%, CAS 530-59-6
• Declare botanical-free synthesis to avoid 3203 vegetable origin confusion
• Ensure no sugar conjugation; pure acid only