Mesna USP from Mexico
Mesna is an organo-sulfur compound used as a cytoprotective agent during chemotherapy to prevent hemorrhagic cystitis. Its mercaptoethane sulfonate structure has sulfur directly linked to carbon atoms per heading 2930 definition. Classified as a pharmaceutical drug in 2930.90.92.35.
Duty Rate — Mexico → United States
3.7%
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 clinical trial data references if for investigational use to expedite FDA clearance
• Specify pH stability range in COA as it's critical for classification integrity
• Prevent reclassification by documenting exclusion from Chapter 38 fire-extinguisher chemicals