Inhibits other CDKs in the micromolar range (IC50 values are 2.4, 5.5, 9.2, >10 and >10 μM for CDK2-cyclin A, CDK1-cyclin B1, CDK4-cyclin D1, CDK6-cyclin D3 and CDK7-cyclin H-MAT1, respectively)
Inhibits P-TEFb-dependent in vitro transcription
Induces apoptosis in vitro and in vivo in combination with BI 894999
