Used primarily as a solvent in nuclear magnetic resonance (NMR) spectroscopy due to its deuterated form, which eliminates interference from hydrogen signals, providing clearer and more accurate spectra. It is also employed in organic synthesis as a deuterated reagent to study reaction mechanisms and kinetics by tracing the movement of deuterium atoms. In pharmaceutical research, it serves as a solvent for deuterated compounds, aiding in the development of drugs with improved stability and bioavailability. Additionally, it is utilized in the preparation of deuterated polymers and materials for specialized applications in materials science.