Chemical. CAS 237430-03-4. Formula C16H11N3O3. MW 293.3. Potent CDK1/cyclin B IC50 = 35 nM inhibitor. Anti-tumor compound Potent inhibitor of CDK2/cyclin A, CDK2/cyclin E IC50 = 200 nM, CDK5/p25 IC50 = 40 nM, CDK5/p35 IC50 = 40 nM. GSK-3beta glycogen synthase kinase-3beta inhibitor. Apoptosis inhibitor. Apoptosis inducer. Angiogenesis inhibitor.