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
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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