Trimethoprim USP Powder from Canada
Trimethoprim is a synthetic antibacterial agent classified under HTS 2933.59.22.00 as a pyrimidine ring-containing anti-infective drug. This USP-grade powder is used primarily in pharmaceutical formulations for treating bacterial infections in humans and animals. Its aromatic structure and drug function place it specifically in this subcategory.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide FDA Drug Master File and Certificate of Analysis confirming USP purity >99% to avoid reclassification
• Ensure shipments include veterinary or human drug registration docs; mislabeling as feed additive risks detention
• Verify aromatic modification via HPLC certificate to prevent shift to non-aromatic 2933.59.15