Despite expanding therapeutic application of sunitinib and advances in its formulation, pharmacochemical and spectroscopical study on its aqueous solution is rather insufficient due to poor solubility of its base or salt form. In this report, 1 H (900 MHz) and 13 C (225 MHz) NMR spectra of sunitinib malate in H 2 O/D 2 O=9/1 have been analyzed, whose spectral peaks have been assigned