Idoxuridine Crystals from China
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 — China → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• ,CAS 54-42-2 declaration confirms pyrimidine classification over nucleoside 2934
• Small volume imports common; watch minimum quantity thresholds for pharma chemicals