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Isogranulatimide (CAS 244148-46-7)

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Application:Cell-permeable alkaloid that acts as a potent and ATP-competitive inhibitor of Chk1
CAS Number:244148-46-7
Molecular Weight:276.3
Molecular Formula:C15H8N4O2
Refer to Certificate of Analysis for lot specific data (including water content).
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Product NameCatalog #UnitPriceQtyAddFavorites
Isogranulatimide sc-202667 1 mg $700
Isogranulatimide is a cell-permeable alkaloid containing indole/maleimide/imidazole skeleton that acts as a potent, reversible and ATP-competitive inhibitor of Chk1 (IC50 = 100 nM) and GSK-3β (IC50 = 500 nM). Isogranulatimide inhibits G2 DNA damage checkpoint-associated kinases, Chk2, Cdk1, and DNA-PK only at much higher concentrations (IC50 = 3 µM, 10 µM, and 10 µM, respectively). Isogranulatimide only minimally affects the activities of a panel of 11 other kinases tested (IC50 ≥ 40 µM). When used in combination with γ-irradiation, it is also reported to selectively arrest the growth of MCF-7 cells lacking p53 function.
Technical Information
Physical State:Solid
Solubility:Soluble in DMSO.
Storage:Store at 4° C
Melting Point:296.16° C (Predicted)
Boiling Point:678.88° C (Predicted)
Density:1.83 g/cm3 (Predicted)
Refractive Index:n20D 1.97 (Predicted)
IC50:Chk1: IC50 = 100 nM; GSK-3β: IC50 = 500 nM; Chk2: IC50 = 3 µM; Cdk1: IC50 = 10 µM; DNA-PK: IC50 = 10 µM; DU-145 : IC50 = 13.1 µM (human); L1210 : IC50 = 10 µM (mouse)
pK Values:pKa: 9.43 (Predicted)
Safety and Reference Information
PubChem CID:6419741
EC Number:MFCD09970584
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

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Jiang, X., et al. 2004. Mol. Cancer Ther. 3, 1221. Roberge, M., et al. 1998. Cancer Res. 58, 5701.
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