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

Norfloxacin Base from Canada

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 — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

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

Norfloxacin Base from Canada — Import Duty Rate | HTS 2933.99.46.00