Tetrazole API Intermediate from Germany
Tetrazole contains four nitrogen atoms in a five-membered aromatic ring, classified as nitrogen heterocycle only under HTS 2933.99.82. Critical for sartans blood pressure medications.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• ANDA documentation for generic APIs; stability under acid conditions; explosive hazard declarations