Cabozantinib N-oxide is a impurity of Cabozantinib (X745500), a medication used to treat medullary thyroid cancer. As well, it can be used in biological study. Computational network biological approach based on pathway cross-talk inhibition identified new synergistic drug combinations using raloxifene and cabozantinib for treatment of human breast cancer in xenograft mouse model. Potent c-MET inhibitor.