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

Zaleplon API from Japan

Zaleplon, active in Sonata sleep aid, contains pyrazole ring as core structure for non-benzodiazepine hypnotic action. HTS 2933.19.4500 classification for unfused pyrazole drugs. Bulk API for capsule production.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Controlled substance documentation required (Schedule IV); include DEA import permit

Specify pyrazole acetamide structure in technical dossier with mass spec confirmation

Zaleplon API from Japan — Import Duty Rate | HTS 2933.19.45.00