Deuterium oxide

Deuterium oxide (CAS 7789-20-0), commonly known as heavy water or D₂O, is the isotopically enriched form of water in which hydrogen atoms are replaced by deuterium.

Where is Deuterium oxide used?

• Research and industry: solvent and isotopic tracer
• NMR spectroscopy: reference solvent that suppresses background signals for structural analysis of pharmaceutical compounds and biologics
• Semiconductor and electronics: specialized etching and deposition processes where isotopic purity affects process control
• Pharmaceutical manufacturing: isotope labeling studies and stable isotope-tagged API synthesis
• Life science researchers trace biochemical pathways in cell culture and metabolic flux studies without radioactive materials.

Good to know: Isotopic purity typically ranges from 99.8% to 99.96% atom % D depending on intended use; NMR-grade and analytical-grade specifications are the most commonly stocked, and pharmaceutical-grade material is available under GMP conditions.

Commercial specifications

• Isotopic purity: 99.8% to 99.96% atom % D
• NMR-grade and analytical-grade specifications
• Packaging from small ampoules to bulk quantities