MS023 is primarily utilized in biochemical research for its role as a potent and selective inhibitor of protein arginine methyltransferases (PRMTs), particularly PRMT1 and PRMT4 (CARM1). Its application is significant in studying epigenetic regulation, as PRMTs are involved in the methylation of histone and non-histone proteins, influencing gene expression and cellular processes. Researchers employ MS023 to investigate the biological functions of PRMTs in various contexts, including cancer biology, immune response, and stem cell differentiation. By inhibiting PRMT activity, MS023 helps elucidate the molecular mechanisms underlying these processes, contributing to the development of potential therapeutic strategies for diseases linked to dysregulated protein methylation.