Zaurategrast ethyl ester is primarily used in the field of medical research, particularly in the study of inflammatory diseases. It functions as an antagonist of the VLA-4 integrin, which plays a crucial role in the adhesion and migration of leukocytes. By inhibiting VLA-4, this compound helps in reducing inflammation and has potential therapeutic applications in conditions like multiple sclerosis, asthma, and other autoimmune disorders. Its ethyl ester form enhances its bioavailability, making it more effective in preclinical studies aimed at developing new anti-inflammatory treatments.