2933.39.61/Isonicotinic Acid Hydrazide (INH)/Canada

Isonicotinic Acid Hydrazide (INH) from Canada

Isonicotinic acid hydrazide (INH), or isoniazid, contains an unfused pyridine ring and serves as a first-line antituberculosis drug API. Classified in HTS 2933.39.61 per additional U.S. note 3 to section VI for specified pyridine compounds. Essential for generic TB treatment manufacturing.

Duty Rate — Canada → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Secure FDA API registration and WHO prequalification certificates for expedited review

• Maintain cold chain documentation (2-8°C) throughout shipping to preserve efficacy

• Report under WHO Essential Medicines List for potential duty relief programs

Isonicotinic Acid Hydrazide (INH) from Canada — Import Duty Rate | HTS 2933.39.61