DL-Lysine Hydrochloride USP from Mexico
DL-Lysine hydrochloride USP is the racemic mixture of D- and L-lysine salts meeting pharmacopeia standards for pharmaceutical synthesis. Used where both enantiomers are required. HTS 2922.41.0010 includes racemic lysine salts with USP compliance.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• ,Include intended pharma synthesis use to justify USP classification
• Avoid optical rotation confusion with L-form—clear specs prevent reclass