SC239 is primarily used in research settings as a selective inhibitor of protein kinases, particularly targeting members of the Src family of tyrosine kinases. It has been employed in cellular studies to investigate signaling pathways involved in cell proliferation, migration, and survival. Due to its ability to modulate kinase activity, SC239 is useful in studying cancer-related processes, especially in models where aberrant kinase signaling contributes to tumor progression. It is also applied in pharmacological studies to evaluate the effects of kinase inhibition on downstream molecular targets, helping to identify potential therapeutic strategies for diseases driven by hyperactive kinase networks. Its selectivity makes it a valuable tool for dissecting specific kinase functions without broad off-target effects.