PD 0332991 isethionate

Cat. No. 4786new

PD 0332991 isethionate C24H29N7O2.C2H6O4S [827022-33-3]

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Alternative Name: Palbociclib

Chemical Name: 6-acetyl-8-cyclopentyl-5-methyl-2-[[5-(1-piperazinyl)-2-pyridinyl]amino]pyrido[2,3-d]pyrimidin-7(8H)-one isethionate salt

Biological Activity

Potent Cdk4/6 inhibitor (IC50 values are 11 and 15 nM for Cdk4 and Cdk6 respectively). Selective for Cdk4/6 over a panel of 34 additional protein kinases (IC50 values are > 10 μM). Induces G1 cell cycle arrest and senescence in retinoblastoma protein (Rb)-proficient cell lines; blocks growth of intracranial glioblastoma multiforme xenografts in mice. Brain penetrant.

Licensing Information

Sold for research purposes under agreement from Pfizer Inc.

Technical Data

Soluble to 100 mM in water and to 10 mM in DMSO
>98 %
Desiccate at RT

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet


Fry et al (2004) Specific inhibition of cyclin-dependent kinase 4/6 by PD 0332991 and associated antitumor activity in human tumor xenografts. Mol.Cancer Ther. 3 1427. PMID: 15542782.

Toogood et al (2005) Discovery of a potent and selective inhibitor of cyclin-dependent kinase 4/6. J.Med.Chem. 48 2388. PMID: 15801831.

Michaud et al (2010) Pharmacologic inhibition of cyclin-dependent kinases 4 and 6 arrests the growth of glioblastoma multiforme intracranial xenografts. Cancer Res. 70 3228. PMID: 20354191.

If you know of a relevant citation for this product please let us know.

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Keywords: PD 0332991 isethionate, supplier, PD0332991, isethionate, cyclin, dependent, kinases, Cdk4, Cdk6, selective, potent, inhibitors, inhibits, antitumor, G1, cell, cycle, arrest, brain, penetrant

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