Used in pharmaceutical research as a labeled compound for studying metabolic pathways and drug interactions. It serves as a deuterated analog in pharmacokinetic studies to enhance the precision of mass spectrometry analysis. Applied in the development of central nervous system (CNS) drugs due to its structural similarity to bioactive molecules. Also utilized in neurochemical research to investigate neurotransmitter systems and receptor binding mechanisms. Its stable isotope labeling aids in tracking and quantifying compounds in biological samples.