Used in pharmaceutical research as a labeled compound for studying drug metabolism and pharmacokinetics. It helps in tracing the pathways and interactions of drugs within biological systems. Often employed in the development of new therapeutic agents, particularly in the field of neuroscience. Its deuterated form enhances the precision of mass spectrometry analyses, allowing for more accurate detection and quantification in complex biological matrices. Additionally, it serves as a valuable tool in the synthesis of isotopically labeled analogs for mechanistic studies.