Pure DL-HMTBA Powder USP Grade from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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