CAY-10592 is primarily utilized in research settings as a potent and selective inhibitor of protein kinase D (PKD). It is widely used in biochemical and cellular studies to investigate the role of PKD in various signaling pathways. Researchers employ CAY-10592 to explore its effects on processes such as cell proliferation, migration, and secretion, particularly in the context of cancer biology. Its ability to inhibit PKD activity makes it a valuable tool for understanding the mechanisms underlying diseases where PKD is implicated, including certain types of cancers and cardiovascular conditions. Additionally, CAY-10592 is used in pharmacological studies to assess its potential therapeutic applications, aiding in the development of targeted therapies for PKD-related disorders.