Methotrexate from Canada
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 — Canada → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Submit FDA IND/NDA documentation for API import; maintain GMP-certified supply chain; beware reclassification risk if purity <99% suggesting intermediate status