Allopurinol from China
Allopurinol is a xanthine oxidase inhibitor with purine-like triazole ring structure, used to treat gout and hyperuricemia. This aromatic heterocyclic compound is classified as a drug under HTS 2934.99.30.00 due to its pharmaceutical therapeutic applications.
Duty Rate — China → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Certify compliance with USP/EP monographs for pharmacopeial grade specifications
• Declare particle size distribution data important for tablet formulation consistency
• Provide polymorphism characterization since crystal form affects bioavailability