Research-Grade Deuterium Oxide D2O 99.95% for NMR Solvents from Mexico
Research-grade D2O at 99.95% purity serves as a lock solvent in nuclear magnetic resonance (NMR) spectroscopy. It is heavy water, a chemically defined isotope compound in HTS 2845.10.00.00.
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
• Provide university or lab affiliation letters for preferential research tariffs; seal ampoules to maintain purity during transit
• Avoid classification disputes by specifying 'deuterium oxide' on invoices