This compound is primarily used in pharmaceutical research and development, particularly in the synthesis of isotopically labeled compounds. Its deuterated form (d4) makes it valuable in mass spectrometry and NMR studies, where it serves as a stable internal standard for accurate quantification and metabolic profiling. It is also employed in the preparation of intermediates for drug candidates, especially those targeting neurological and psychiatric disorders, due to its isoxazole moiety, which is a common pharmacophore in central nervous system-active drugs. Additionally, it finds application in the study of drug metabolism and pharmacokinetics, aiding in the identification and characterization of metabolites.