Used primarily as a solvent in nuclear magnetic resonance (NMR) spectroscopy, it serves as a deuterated solvent to analyze molecular structures without interference from hydrogen signals. It is also employed in organic synthesis, particularly in reactions requiring anhydrous conditions or as a solvent for polar compounds. In the pharmaceutical industry, it aids in the synthesis and purification of drug compounds. Additionally, it is utilized in mass spectrometry as a solvent for sample preparation, ensuring accurate analysis of complex mixtures. Its deuterated form makes it valuable in studies involving isotopic labeling for tracking chemical reactions.