Pharmaceutical Grade Ammonium Alum from China
Pharmaceutical-grade ammonium alum, or ammonium aluminum sulfate dodecahydrate, is a USP-grade double sulfate salt used in topical astringents and pharmaceutical formulations. Its chemically defined nature and double sulfate structure classify it as an alum under tariff item 2833.30.00. The pharmaceutical grade does not alter its classification within chapter 28, as the product remains a separate chemical compound.
Duty Rate — China → Canada
0%
Import Tips
• If the product is for pharmaceutical use, ensure it complies with the Food and Drugs Act and obtain a Drug Establishment Licence if applicable
• Provide a certificate of analysis showing USP compliance
• Declare the product as a chemical, not a finished drug, to avoid misclassification