MS023 is a selective inhibitor of protein arginine methyltransferases, particularly targeting PRMT5 and PRMT7. It is widely used in epigenetic research to study the role of arginine methylation in cellular processes such as transcriptional regulation, RNA processing, and DNA damage repair. Due to its ability to modulate PRMT activity, MS023 has become a valuable tool in cancer research, where dysregulation of PRMT enzymes is linked to tumor growth and progression. It helps in identifying potential therapeutic targets by suppressing methylation-dependent signaling pathways in various cancer cell lines. Additionally, MS023 is employed in stem cell and developmental biology studies to explore how epigenetic modifications influence cell differentiation and proliferation. Its selectivity and potency make it suitable for in vitro assays and cellular models, supporting drug discovery and mechanistic studies in epigenetics.