1. Cell Cycle/DNA Damage
  2. Checkpoint Kinase (Chk)
  3. CCT241533 hydrochloride

CCT241533 hydrochloride 

Cat. No.: HY-14715B Purity: 99.98%
Handling Instructions

CCT241533 hydrochloride is a potent and selective CHK2 inhibitor with an IC50 of 3 nM and a Ki of 1.16 nM.

For research use only. We do not sell to patients.

CCT241533 hydrochloride Chemical Structure

CCT241533 hydrochloride Chemical Structure

CAS No. : 1431697-96-9

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Based on 1 publication(s) in Google Scholar

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Description

CCT241533 hydrochloride is a potent and selective CHK2 inhibitor with an IC50 of 3 nM and a Ki of 1.16 nM.

IC50 & Target[1]

Chk2

3 nM (IC50)

Chk1

245 nM (IC50)

In Vitro

CCT241533 hydrochloride inhibits CHK2 with an IC50 of 3 nM and shows minimal cross reactivity against a panel of kinases at 1 μM. X-ray crystallography confirms that CCT241533 binds to CHK2 in the ATP pocket. CCT241533 blocks CHK2 activity in human tumor cell lines in response to DNA damage, as demonstrated by inhibition of CHK2 autophosphorylation at S516, band-shift mobility changes and HDMX degradation. CCT241533 does not potentiate the cytotoxicity of a selection of genotoxic agents in several cell lines. However, CCT241533 significantly potentiates the cytotoxicity of two structurally distinct PARP inhibitors. Clear induction of the pS516 CHK2 signal is seen with a PARP inhibitor alone and this activation is abolished by CCT241533. The cytotoxicity of CCT241533 in HT-29, HeLa and MCF-7, measured as the growth inhibitory IC50(GI50) by SRB assay, is 1.7, 2.2 and 5.1 μM, respectively[1]. CCT241533 hydrochloride is a potent CHK2 inhibitor (IC50=3 nM), with selectivity (63-fold) over CHK1(IC50=190 nM) and low hERG inhibition (IC50=22 μM)[2].

Molecular Weight

478.94

Formula

C₂₃H₂₈ClFN₄O₄

CAS No.

1431697-96-9

SMILES

[H]Cl.COC1=C(OC)C=C(C(N[[email protected]]2[[email protected]](C(C)(C)O)CNC2)=NC(C3=C(O)C=CC(F)=C3)=N4)C4=C1

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (208.79 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.0879 mL 10.4397 mL 20.8794 mL
5 mM 0.4176 mL 2.0879 mL 4.1759 mL
10 mM 0.2088 mL 1.0440 mL 2.0879 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (5.22 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (5.22 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (5.22 mM); Clear solution

*All of the co-solvents are provided by MCE.
References
Cell Assay
[1]

HT-29, HeLa and MCF-7 cells are exposed to a fixed concentration (GI50) of CCT241533 in combination with increasing concentrations of either PARP inhibitor or cytotoxic drug in a 96 hour SRB assay or 7-10 day colony forming assay. The ability of CCT241533 to enhance cell killing is expressed as a potentiation index (PI) which is the ratio of GI50 for the genotoxic or PARP inhibitor alone: GI50 for the genotoxic or PARP inhibitor in combination with a CHK2 inhibitor. Thus PI>1 indicates potentiation and PI<1 indicates protection[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References

Purity: 99.98%

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Keywords:

CCT241533CCT 241533CCT-241533Checkpoint Kinase (Chk)Inhibitorinhibitorinhibit

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CCT241533 hydrochloride
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