Methotrexate from Mexico
Methotrexate is a folic acid antagonist containing pteridine heterocyclic rings, used as an antineoplastic and immunosuppressant drug. Classified under HTS 2934.99.4700 as a pharmaceutical drug with 'other heterocyclic compounds' structure. Its complex ring system with multiple nitrogens defines its Chapter 29 placement.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Submit FDA IND/NDA documentation for API import; maintain GMP-certified supply chain; beware reclassification risk if purity <99% suggesting intermediate status