Chloramphenicol Base Powder from Canada
Pure chloramphenicol base in powdered form, a broad-spectrum antibiotic chemically defined as D-(-)-threo-2,2-dichloro-N-[β-hydroxy-α-(hydroxymethyl)-p-nitrophenethyl]acetamide. It falls under HTS 2941.40.00.00 as a separate chemically defined antibiotic of the chloramphenicol class. Used primarily in pharmaceutical manufacturing for injection or oral formulations.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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
• Require Certificate of Analysis (CoA) confirming purity >99% and identity via HPLC to meet FDA import standards for bulk APIs
• Ensure DEA compliance if any precursor status applies; chloramphenicol has veterinary restrictions in some markets
• Label as 'For Pharmaceutical Use Only - Not for Human Consumption' to avoid retail drug classification pitfalls