CYM5442 is primarily used in research settings to study its effects on sphingosine-1-phosphate (S1P) receptors. It acts as a potent agonist for S1P1 receptors, making it a valuable tool in understanding immune system regulation and vascular biology. Researchers utilize it to explore its potential in modulating immune responses, particularly in conditions like autoimmune diseases and inflammation. Additionally, CYM5442 has been investigated for its role in vascular barrier protection and its potential therapeutic applications in diseases involving vascular leakage or endothelial dysfunction. Its ability to selectively target S1P1 receptors makes it a promising candidate for further studies in immunology and vascular medicine.