L-Phenylalanine from Mexico
L-Phenylalanine is an essential amino acid featuring a benzyl side chain, falling under oxygen-function amino-acids in HTS 2922.49.4950. It's widely used in sports nutrition, PKU management, and as a precursor for aspartame sweetener.
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
• Provide FEMA GRAS status documentation for food use to expedite FDA clearance
• Specify L-isomer chirality in invoices to distinguish from racemic DL-phenylalanine
• Avoid bulk packaging over 25kg without proper stabilization to prevent degradation claims