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Tetrazole API Intermediate from China

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 — China → United States

19%

Rate breakdown

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

ANDA documentation for generic APIs; stability under acid conditions; explosive hazard declarations

Tetrazole API Intermediate from China — Import Duty Rate | HTS 2933.99.82