Idoxuridine Crystals from Mexico
Idoxuridine is an iodinated pyrimidine nucleoside antiviral, with aromatic modified structure. HTS 2933.59.80.00 covers this halogenated heterocyclic per chapter notes on derivatives. Used in ophthalmic and topical formulations.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• ,CAS 54-42-2 declaration confirms pyrimidine classification over nucleoside 2934
• Small volume imports common; watch minimum quantity thresholds for pharma chemicals