This compound is primarily used in research and development as a labeled internal standard in analytical chemistry. It aids in the accurate quantification and identification of nebivolol and its metabolites in biological samples, such as blood or urine, during pharmacokinetic studies. Its deuterated form ensures minimal interference with the analysis, providing reliable data for drug metabolism and bioavailability research. Additionally, it supports the development of sensitive and precise analytical methods, such as LC-MS/MS, for therapeutic drug monitoring and clinical studies.