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2933.59.59.00/Sulfadiazine Free Base/Canada

Sulfadiazine Free Base from Canada

Sulfadiazine contains pyrimidine ring linked to sulfonamide, used in antibacterial treatment. HTS 2933.59.59.00 for pyrimidine drugs despite sulfur; organo-sulfur exclusion doesn't apply. Free base form for API use.

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)
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Import Tips

• Sulfonamide analysis to confirm pyrimidine characteristic group

• Veterinary vs human grade declaration affects chapter

• Free base solubility data prevents salt misdeclaration

Sulfadiazine Free Base from Canada — Import Duty Rate | HTS 2933.59.59.00