p-Fluoro-DL-Phenylalanine from Mexico
p-Fluoro-DL-phenylalanine is a halogenated aromatic amino-acid derivative with single oxygen function, included in HTS 2922.49.30.00 via additional U.S. note 3. Used in medicinal chemistry.
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
• Halogen noted but classifies as amino-acid per chapter notes; declare substitution clearly