Anhydrous Tolmetin Sodium for API Manufacturing from Japan
Anhydrous tolmetin sodium is imported as a key intermediate for producing anti-inflammatory medications, featuring a nitrogen-containing heterocyclic ring system. HTS 2933.99.55.30 applies due to its drug status as a CNS-affecting analgesic. Supplied in drums for large-scale pharma production.
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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
• Ensure transport in moisture-proof packaging to maintain anhydrous form; provide ICH stability studies
• Common pitfall: incorrect declaration as dihydrate leading to duty disputes