Lyn-IN-1 is primarily utilized in research settings as a selective inhibitor of the Lyn kinase enzyme, which plays a significant role in signaling pathways within cells. Its application is particularly relevant in the study of cancer biology, as Lyn kinase is often implicated in the progression of certain types of cancers, including leukemia and breast cancer. By inhibiting Lyn kinase, researchers can investigate the effects on cancer cell proliferation, survival, and resistance to treatment. Additionally, Lyn-IN-1 is used to explore the role of Lyn kinase in immune cell signaling, providing insights into autoimmune diseases and inflammatory conditions. Its specificity makes it a valuable tool for understanding the complex mechanisms of cellular signaling and developing targeted therapeutic strategies.