IRAK inhibitor 3 is primarily used in research settings to study the role of IRAK (Interleukin-1 Receptor-Associated Kinase) in immune signaling pathways. It is particularly valuable in understanding the mechanisms of inflammation and immune responses, as IRAK plays a critical role in Toll-like receptor (TLR) and interleukin-1 receptor (IL-1R) signaling. By inhibiting IRAK activity, researchers can investigate its impact on conditions like autoimmune diseases, chronic inflammation, and cancer. Additionally, it serves as a tool for exploring potential therapeutic targets for diseases driven by dysregulated immune signaling. Its application extends to preclinical studies aimed at developing novel treatments for inflammatory disorders and immune-related conditions.