Inhibits Cdk2/cyclin A, Cdk2/cyclin E, Cdk5/p25, and Cdk7/cyclin H with IC50 values of 8, 8, 5, and 10 nM, respectively; cytotoxic to human ovarian A2780, colon HCT116, pancreatic BX-PC3, and leukemic K562, KU812, KCL22, and TOM1 cells both in vitro and in xenograft models.