CGP48369 is primarily used in research settings to study cellular signaling pathways, particularly those involving protein kinases. It serves as a tool compound to investigate the role of specific kinase activities in biological processes. Researchers utilize it to explore mechanisms related to cell growth, differentiation, and apoptosis, providing insights into potential therapeutic targets for diseases like cancer. Its application helps in understanding the complex interactions within cellular networks and contributes to the development of novel kinase inhibitors.