Used as a solvent in NMR spectroscopy due to its deuterated form, which provides a clear background for analyzing molecular structures. It is particularly valuable in studies involving organic compounds, where non-deuterated solvents would interfere with the spectral data. Its application extends to research in pharmaceuticals, where precise molecular analysis is crucial for drug development. Additionally, it serves as a reference standard in mass spectrometry for calibration and validation purposes. In material science, it aids in the characterization of polymers and other complex materials.