Biological Activity
Selective checkpoint kinase 1 (Chk1) inhibitor (Ki values are 0.49 and 47 nM for Chk1 and Chk2 respectively). Abrogates cell cycle arrest at S and G2-M checkpoints; sensitizes cells to DNA damage. Enhances docetaxel (Cat. No. 4056) efficacy in tumor cells and xenografts.
Licensing Information
Sold for research purposes under agreement from Pfizer Inc.
External Portal Information
Chemicalprobes.org is a portal that offers independent guidance on the selection and/or application of small molecules for research. The use of PF 477736 is reviewed on the chemical probes website.
Compound Libraries
PF 477736 is also offered as part of the Tocriscreen Plus and Tocriscreen Kinase Inhibitor Toolbox II. Find out more about compound libraries available from Tocris.
Technical Data
| M. Wt | 419.48 |
| Formula | C22H25N7O2 |
| Storage | Store at +4°C |
| Purity | ≥99% (HPLC) |
| CAS Number | 952021-60-2 |
| PubChem ID | 16750408 |
| InChI Key | YFNWWNRZJGMDBR-LJQANCHMSA-N |
| Smiles | O=C([C@H](N)C4CCCCC4)NC1=CC3=C(C(C=NNC3=O)=C(C5=CN(C)N=C5)N2)C2=C1 |
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.
Solubility Data
| Solvent | Max Conc. mg/mL | Max Conc. mM | |
|---|---|---|---|
| Solubility | |||
| DMSO | 31.46 | 75 |
Preparing Stock Solutions
The following data is based on the product molecular weight 419.48. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 2.38 mL | 11.92 mL | 23.84 mL |
| 5 mM | 0.48 mL | 2.38 mL | 4.77 mL |
| 10 mM | 0.24 mL | 1.19 mL | 2.38 mL |
| 50 mM | 0.05 mL | 0.24 mL | 0.48 mL |
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Product Datasheets
References
References are publications that support the products' biological activity.
Ashwell and Zabludoff (2008) DNA damage detection and repair pathways - recent advances with inhibitors of checkpoint kinases in cancer therapy. Clin.Cancer Res. 14 4032 PMID: 18593978
Blasina et al (2008) Breaching the DNA damage checkpoint via PF-00477736, a novel small-molecule inhibitor of checkpoint kinase 1. Mol.Cancer Ther. 7 2394 PMID: 18723486
Zhang et al (2009) PF-00477736 mediates checkpoint kinase 1 signaling pathways and potentiates docetaxel-induced efficacy in xenografts. Clin.Cancer Res. 15 4630 PMID: 19584159
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