Broad spectrum protein kinase inhibitor. Inhibits conventional PKC isoforms (α, β, γ), PDFRβ, VEGFR2, Syk, PKCη, Flk-1, Flt3, Cdk1/B, PKA, c-Kit, c-Fgr, c-Src, VEGFR1 and EGFR. Displays potent antitumor activity.