</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2933.99.55.90/Naproxen Sodium API/China

Naproxen Sodium API from China

Naproxen sodium is an NSAID analgesic and anti-inflammatory agent featuring an aromatic heterocyclic naphthalene structure with nitrogen functionality, classified under HTS 2933.99.55.90. Used primarily for pain relief and fever reduction affecting the central nervous system.

Duty Rate — China → United States

19%

Rate breakdown

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Calculate with your customs valueVerify classification with AI

Import Tips

• Include DEA import permit if precursor chemicals are involved in synthesis

• Ensure ICH Q7 GMP compliance documentation for API manufacturing

• Label shipments clearly as 'Bulk Drug Substance - For Further Processing'

Naproxen Sodium API from China — Import Duty Rate | HTS 2933.99.55.90