2933.59.53.00/Theophylline Anhydrous API/Mexico

Theophylline Anhydrous API from Mexico

Theophylline is a methylxanthine drug with fused pyrimidine-imidazole rings, used for respiratory disorders. Classified in HTS 2933.59.53.00 due to its aromatic pyrimidine structure and status as a pharmaceutical drug. Meets Chapter 29 criteria for separate chemically defined compounds.

Duty Rate — Mexico → 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

• Register with FDA as bulk drug substance; include pharmacopeial grade certification

• Verify no solvents beyond transport allowances per Chapter 29 note (e)

Theophylline Anhydrous API from Mexico — Import Duty Rate | HTS 2933.59.53.00