Patent ID: 8466190

Claim:
A crystalline form of Sunitinib base (I), which is Form C, wherein Form C has a powder X-Ray diffraction pattern having 2θ values of 4.3, 7.7, 8.6, 10.8, 12.9, 13.8, 17.3, 17.8, 19.1, 21.2, 21.5, 22.0, 23.2, 26.2, 27.6, 32.1, and 33.9; or a FTIR spectrum having peaks at cm −1 values of 3299.9, 1674.2, 1626.5, 1565.6, 1537.1, 1476.7, 1326.8, 1199.9, 1144.2, 797.1, 667.6, 606.9, and 589.0; or a DSC curve having a principal peak maximum at 223.5° C.