Trimetrexate Glucuronate from Mexico
Trimetrexate is a folic acid antagonist with pyrimidine structure, used in cancer therapy. Imports as HTS 2933.59.53.00 aromatic drug with salts classified to acid per note 5(C). Heterocyclic nitrogen-only per notes.
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
Import Tips
• Classify salts with parent compound per Chapter 29 note 5(C)(1)
• Ensure glucuronate salt purity >95% to avoid mixture headings
• Avoid retail packing to prevent Chapter 30 shift