Used as a labeled compound in research and development, particularly in the field of organic chemistry and pharmaceuticals. It serves as a deuterated analog of 2-chloro-6-dimethylaminopyridine, enabling precise tracking and analysis in metabolic studies and reaction mechanisms. Its incorporation in synthesis processes aids in understanding the behavior of non-deuterated counterparts, making it valuable for drug discovery and development. Additionally, it is employed in NMR spectroscopy as a tracer to study molecular interactions and dynamics in complex systems.