Broad spectrum protein kinase inhibitor. Enzymes inhibited include protein kinase C (IC50 = 3 nM), protein kinase A (IC50 = 7 nM), p60v-src tyrosine protein kinase (IC50 = 6 nM) and CaM kinase II (IC50 = 20 nM). Also available as part of the Mixed Kinase Inhibitor Tocriset™.