Vidarabine (Adenine Arabinoside) from Japan
Vidarabine is an adenine arabinoside antiviral drug with guanosine-like structure effective against herpes viruses. As a chemically defined aromatic heterocyclic pharmaceutical, it classifies under HTS 2934.99.30.00 as a drug.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% 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
• Provide enzymatic purity testing against adenosine deaminase contamination
• Document ophthalmic grade specifications for corneal application
• Include natural/semi-synthetic origin certification from fermentation process