Penicillamine from China
D-Penicillamine, a sulfhydryl-containing amino acid analog, classified under HTS 2930.90.4950 as organo-sulfur acid. Features thiol group with direct C-S bond; used primarily as chelating agent for Wilson's disease and rheumatoid arthritis treatment. Meets chemically defined compound requirements.
Duty Rate — China → United States
41.7%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit USP/NF specifications and chiral purity certificate (D-isomer)
• Include stability data if stabilizer added per Chapter 29(f)
• Declare therapeutic end-use in FDA documentation but maintain bulk chemical HTS