Vandetanib (ZD6474) is a potent inhibitor of VEGFR2 with IC50 of 40 nM in a cell-free assay. It also inhibits VEGFR3 and EGFR with IC50 of 110 nM and 500 nM, respectively. Not sensitive to PDGFR?, Flt1, Tie-2 and FGFR1 with IC50 of 1.1-3.6 ?M. No activity against MEK, CDK2, c-Kit, erbB2, FAK, PDK1, Akt and IGF-1R with IC50 above 10 ?M. Vandetanib (ZD6474) increases apoptosis and induces autophagy by increasing the level of reactive oxygen species (ROS). *For Research & Development use only. Product is not intended for drug, household, or human consumption.