Pure DL-HMTBA Powder USP Grade from Mexico
USP-grade DL-2-Hydroxy-4-(methylthio)butanoic acid powder, the precise DL-hydroxy analogue of DL-methionine under 2930.90.46.00. Meets pharmacopeia standards for potential pharmaceutical or high-purity feed applications.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include USP certificate and impurity analysis per Chapter 29 note 1(a); segregate from feed grades for CBP inspection
• Common issue: incorrect declaration as generic amino acid