DL-Methionine Sulfone is primarily utilized in research and development, particularly in the study of biochemical pathways and metabolic processes. It serves as a stable oxidation product of methionine, making it valuable for investigating oxidative stress and its effects on proteins and cellular components. In the pharmaceutical industry, it is often used as a reference compound in analytical methods to ensure the accuracy and reliability of assays. Additionally, it finds application in the synthesis of specialized chemicals and intermediates for further experimental or industrial use. Its role in studying sulfur-containing amino acids and their derivatives also contributes to advancements in nutritional science and therapeutic development.