</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2933.39.92.00/Isonicotinic Acid Hydrazide (INH, Isoniazid Bulk)/China

Isonicotinic Acid Hydrazide (INH, Isoniazid Bulk) from China

Isoniazid is a pyridine-4-carboxylic acid hydrazide used as bulk active for tuberculosis treatment. Classified in HTS 2933.39.92.00 as 'other' unfused pyridine derivative per Chapter 29 notes for chemically defined compounds. Distinguish from finished pharmaceutical dosage forms.

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

• FDA bulk drug substance registration required; provide USP certificate and hydrazide confirmation

• Not for direct patient use labeling

Isonicotinic Acid Hydrazide (INH, Isoniazid Bulk) from China — Import Duty Rate | HTS 2933.39.92.00