Isoniazid (Pyridine-4-Carboxylic Acid Hydrazide) from Germany
Isoniazid is a first-line antituberculosis drug featuring a pyridine carboxylic acid hydrazide structure. Classified in HTS 2933.39.41.00 as a drug with unfused pyridine ring under Chapter 29 heterocyclic provisions. Essential medicine status requires high purity bulk import form.
Duty Rate — Germany → 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
Import Tips
• Include International Nonproprietary Name (INN) certificate and TB treatment end-use letter
• Hydrazide purity testing critical; impurities >1% may reclassify
• Controlled substance monitoring may apply; check DEA import requirements