Industrial Heavy Water D2O 99.5% for Chemical Synthesis from Mexico
Industrial-grade heavy water (D2O 99.5%) employed in organic synthesis and deuterium exchange reactions in pharmaceutical production. Classified as deuterium oxide under HTS 2845.10.00.00 per chapter isotope provisions.
Duty Rate — Mexico → United States
10%
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
• Use stainless steel or compatible containers to prevent isotopic exchange; file for duty drawback if re-exported in products
• Confirm non-nuclear end-use to bypass additional controls