Purity >98%. BMS 754807 is a reversible, orally bioavailable dual inhibitor of insulin-like growth factor 1 receptor (IGF-1R) and insulin receptor (InsR) tyrosine kinases (IC50 s = 1.8 and 1.7 nM, respectively). It has minimal effect against an array of other tyrosine and serine/threonine kinases. BMS 754807 inhibits cell proliferation or induces apoptosis in a variety of cancer cells in vitro . It inhibits the growth of tumor xenografts in mice and this effect is often enhanced by combination therapy with other chemotherapeutics. Predictive biomarkers, including elevated IGF-1R expression, for effectiveness of BMS 754807 have been delineated.