DPP-IV-IN-1 is primarily used in research settings as a potent and selective inhibitor of dipeptidyl peptidase IV (DPP-4), an enzyme involved in glucose metabolism. Its application is significant in studying the role of DPP-4 in various physiological processes, particularly in diabetes research. By inhibiting DPP-4, it helps researchers understand its impact on incretin hormones, which regulate blood sugar levels. This compound is also utilized in developing and testing new therapeutic strategies for type 2 diabetes, as DPP-4 inhibitors are known to enhance insulin secretion and suppress glucagon release. Additionally, it aids in exploring potential anti-inflammatory and immunomodulatory effects of DPP-4 inhibition in other diseases.