Used as a potent and selective inhibitor of protein kinase C (PKC) enzymes in biochemical and cellular research. It is commonly applied in studies involving signal transduction pathways, particularly to investigate the role of PKC in cell proliferation, differentiation, and apoptosis. Frequently utilized in cancer research to assess the impact of PKC inhibition on tumor cell growth and survival. Also employed in neuroscience to examine PKC involvement in neuronal signaling and synaptic plasticity. Its high selectivity makes it a valuable tool for elucidating specific kinase functions without broad off-target effects.