Acetylsulfisoxazole USP Powder from Canada
Acetylsulfisoxazole is a sulfonamide antibiotic classified under HTS 2935.90.32.00 as a specific anti-infective agent drug. This pure pharmaceutical-grade powder is used in the formulation of medications for treating urinary tract infections and other bacterial infections.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: 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
• Obtain FDA Drug Master File and ensure USP certification for pharmaceutical grade compliance
• Provide Certificate of Analysis (CoA) confirming purity >99% and absence of impurities
• Avoid misclassification as general sulfonamides; specify as listed drug in 2935.90.32.00