1,5-Anhydro-D-sorbitol is primarily used in the field of medical diagnostics, particularly as a biomarker for diabetes. It helps in monitoring long-term blood glucose levels, providing a more stable and reliable measure compared to traditional methods. This compound is also utilized in the development of glucose sensors and other diagnostic tools aimed at improving diabetes management. Additionally, it finds applications in research studies focused on carbohydrate metabolism and related metabolic disorders. Its stability and unique properties make it valuable in both clinical and laboratory settings.