Used primarily in scientific research as a potent and selective inhibitor of phosphoinositide 3-kinase (PI3K), particularly the p110δ isoform. This compound is valuable in studying signaling pathways involved in immune responses and inflammation. It has been applied in cellular assays to suppress B-cell proliferation and mast cell activation, making it a tool for investigating autoimmune diseases and allergic reactions. Additionally, due to its ability to modulate PI3K activity, it is explored in oncology research, especially in hematological malignancies where PI3K signaling is dysregulated. Its selectivity allows for targeted pathway inhibition with reduced off-target effects in experimental models.