L-Cysteine from Mexico
L-Cysteine free base amino acid used in bakery dough conditioning and antioxidant supplements. HTS 2922.49.49 as oxygen-function amino acid with thiol group. Pharmaceutical and food processing applications.
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
• GRAS status but declare oxidation state (free thiol vs disulfide)
• Odoriferous addition allowed per note (g); document safety purpose