KN-92 phosphate is primarily utilized in biochemical research as a potent and selective inhibitor of protein kinase C (PKC). It is widely applied in studies aimed at understanding the role of PKC in cellular signaling pathways, particularly in processes such as cell proliferation, differentiation, and apoptosis. Researchers use KN-92 phosphate to investigate how PKC inhibition affects various physiological and pathological conditions, including cancer, cardiovascular diseases, and neurological disorders. Its application helps in elucidating the mechanisms of PKC-related pathways and in developing potential therapeutic strategies targeting PKC activity. Additionally, KN-92 phosphate serves as a valuable tool in pharmacological studies to compare the effects of PKC inhibition with other signaling modulators.