Idoxuridine Crystals from Canada
Idoxuridine is a iodinated pyrimidine nucleoside antiviral drug containing only nitrogen hetero-atoms in its core structure. HTS 2933.59.59.00 covers it as an 'other' pyrimidine drug, prioritizing ring structure over halogenation. Used in topical antiviral formulations.
Duty Rate — Canada → United States
3.7%
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
• Include synthetic route documentation showing pyrimidine as principal characteristic
• Hazardous material declaration required for iodine content during transport
• USP reference standard certificate prevents generic chemical reclassification