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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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