2922.41.00.10/L-Lysine Base USP (Free Form)/China

L-Lysine Base USP (Free Form) from China

Pure L-lysine base (free amino acid) in USP grade, the active form before salt conversion, used in specialized formulations. Meets pharmacopeia identity, purity tests. Technically a 'salt thereof' under broad HTS 2922.41.0010 for USP lysine products.

Duty Rate — China → United States

112.5%

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

9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Confirm free base vs salt form with pH and titration data

• Handle hygroscopic nature—import in nitrogen-flushed containers

• Document conversion factor to lysine HCL for yield calculations