Used in pharmaceutical research as a deuterated analog to study metabolic pathways and drug interactions, providing insights into the behavior of non-deuterated counterparts. Its incorporation into compounds helps in tracing and analyzing the distribution and degradation of active pharmaceutical ingredients within biological systems. This aids in the development of more effective and stable drugs. Additionally, it serves as a valuable tool in NMR spectroscopy for structural elucidation and mechanistic studies due to its deuterium labeling, enhancing precision in molecular analysis.