Used primarily as a deuterated reagent in NMR spectroscopy, it helps in studying molecular structures and dynamics by replacing hydrogen atoms with deuterium. This substitution reduces signal interference, enhancing the clarity of the spectra. It's also employed in organic synthesis for introducing acetyl groups into molecules, particularly in the production of pharmaceuticals and fine chemicals where isotopic labeling is necessary for tracking and analysis. Additionally, it serves in the synthesis of deuterated compounds for research in metabolic pathways and drug metabolism studies.