Staurosporine-Boc is a natural product isolated from the actinomycete Streptomyces staurosporeus and functions as a potent, non-selective protein kinase inhibitor. It can inhibit various protein kinases, including protein kinase C (PKC), tyrosine kinase, and serine/threonine kinase. Due to its broad inhibitory profile, Staurosporine-Boc is widely used as a tool compound in biological research, particularly in the study of cell signaling pathways.