High Purity Potassium Polyphosphate Crystals from Mexico
High purity potassium polyphosphate crystals (>99%) used in laboratory reagents and pharmaceutical intermediates. Meets HTS 2835.39.10.00 criteria as chemically pure potassium polyphosphate. Crystal form ensures stability for precise applications.
Duty Rate — Mexico → United States
13.1%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide chromatogram or NMR confirming chemical identity and purity
• Declare for laboratory use to avoid pharmaceutical registration requirements
• Use child-resistant packaging for lab chemical imports