Used in research and development as a deuterated form of paraformaldehyde, it serves as a labeling agent in NMR spectroscopy to study molecular structures and dynamics. It is particularly valuable in organic chemistry and biochemistry for tracing reaction mechanisms and metabolic pathways. Additionally, it is employed in the synthesis of deuterated compounds, which are crucial for detailed isotopic studies and pharmaceutical development. Its application extends to polymer science, where it aids in understanding polymerization processes and material properties.