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
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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