Norfloxacin Base from Japan
Norfloxacin is a first-generation fluoroquinolone with a 4-quinolone nitrogen-heterocyclic nucleus used primarily for urinary tract infections. Falls under HTS 2933.99.46.00 as an aromatic anti-infective agent per Chapter 29 definitions.
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 complete synthesis route documentation for FDA review
• Include heavy metals and genotoxic impurity testing results
• Label clearly as 'API - Not for Direct Human Use' to avoid Chapter 30