Bismuth Subnitrate Powder USP from Mexico
A fine white powder mixture of bismuth subnitrate with inorganic stabilizers, used in pharmaceutical compounding for antacid and astringent preparations. Classified under HTS 3824.99.31.00 due to its composition as a mixture of bismuth inorganic compounds not specified elsewhere.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide USP certificate and safety data sheets confirming purity and inorganic nature to prevent reclassification as a metal compound
• Ensure compliance with TSCA inventory listing for bismuth compounds; bulk imports may need EPA pre-manufacture notice if further processed