L-Alanine USP Grade from Mexico
L-Alanine USP grade is the naturally occurring enantiomer of alanine, meeting United States Pharmacopeia standards for pharmaceutical and supplement use. Classified under HTS 2922.49.4910 as a pure, chemically defined alanine amino acid.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6095.8%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
• Include USP certificate and CoA; FDA registration required for pharma-grade imports
• Verify optical rotation confirms L-form to prevent confusion with DL-alanine
• For supplement use, comply with DSHEA labeling; avoid retail packaging pitfalls