Tropic Acid from Mexico
Tropic acid serves as key intermediate for anticholinergic pharmaceuticals, featuring the alcohol-carboxylic acid structure of 2918.19.90.00.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096%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
• Provide DEA precursor documentation if applicable for controlled substance synthesis
• Include synthesis pathway documentation to justify pharmaceutical intermediate status
• Verify against hormone classification exclusions