CDK9 Inhibitor II
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CDK9 Inhibitor II

4-(3,5-Diamino-1H-pyrazol-4-ylazo)-phenol (CAN508)

OTAVAchemicals Catalogue Number: 7020402317
CAS Registry Number: 140651-18-9
Purity: 97%+ (HPLC)

Ref.: Krystof et al. 4-Arylazo-3,5-diamino-1H-pyrazole CDK Inhibitors: SAR Study, Crystal Structure in Complex with CDK2, Selectivity, and Cellular Effects. Journal of Medicinal Chemistry (2006), 49, 6500-6509

Abstract: The most potent inhibitor, 4-[(3,5-diamino-1H-pyrazol-4-yl)diazenyl]phenol, reduced the frequency of S-phase cells of the cancer cell line HT-29 in antiproliferation assays. Further observed cellular effects included decreased phosphorylation of the retinoblastoma protein and the C-terminal domain of RNA polymerase II, inhibition of mRNA synthesis, and induction of the tumor suppressor protein p53, all of which are consistent with inhibition of CDK9.