This compound is primarily used in research settings to study the role of indoleamine 2,3-dioxygenase (IDO) in various biological processes. It serves as a potent inhibitor of IDO, an enzyme involved in the metabolism of tryptophan, which plays a critical role in immune regulation and tumor evasion. Researchers utilize it to investigate its potential in cancer immunotherapy, as blocking IDO can enhance the immune system's ability to target and destroy cancer cells. Additionally, it is employed in studies related to autoimmune diseases and inflammatory conditions, where IDO activity is often dysregulated. Its application extends to preclinical drug development, where it helps in evaluating the therapeutic efficacy of IDO inhibitors in various disease models.