</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

5-Fluorouracil from Japan

5-Fluorouracil is an aromatic pyrimidine analog used as an antineoplastic drug for cancer chemotherapy treatment. Classified under HTS 2934.99.30.00 as a drug featuring a modified aromatic heterocyclic structure essential for its pharmaceutical action.

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

Include FDA Drug Master File references and manufacturing site certifications for bulk API imports

Declare exact purity levels (>99%) and provide stability data to satisfy pharmaceutical import standards

Comply with cGMP documentation requirements even for bulk powder shipments to avoid FDA detention