Used in biochemical research as a labeled compound for studying metabolic pathways, particularly in the context of cysteine and glutathione metabolism. Its deuterated form allows for precise tracking and analysis in mass spectrometry and NMR studies. This compound is also employed in the investigation of detoxification processes and the role of acetylated metabolites in cellular mechanisms. Additionally, it serves as a tool in the development of analytical methods for detecting and quantifying related biomolecules in complex biological samples.