L-Lysine Monohydrochloride from Mexico
L-Lysine monohydrochloride is the hydrochloride salt of the essential amino acid L-lysine, a chemically defined organic compound with an amino-acid oxygen function (carboxyl group). It falls under HTS 2922.41.00.90 as 'other' lysine salts, distinct from the principal L-lysine HCl used in animal feed. Primarily used in pharmaceuticals and nutritional supplements for human consumption.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify purity certificate (≥98%) and optical isomer (L-form) via HPLC analysis to confirm classification as a lysine salt
• Include CoA documenting it's not feed-grade; pharma-grade requires DMF filing with FDA
• Avoid misclassification as bulk feed additive (2922.41.00.10); declare intended use in documentation