Sulfapyridine Silver Salt from Canada
Silver sulfadiazine 1% cream prevents burn wound infections; silver ions potentiate sulfonamide. HTS 2935.90.4800 classification as sulfonamide anti-infective coordination compound per Chapter 29 note (C)(3). Poorly absorbed for topical action.
Duty Rate — Canada → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Silver ion release profile validates antibacterial synergy
• Coordination compound documentation prevents Chapter 28 metal classification
• Cream stability data despite light-induced discoloration