For research use only.

Catalog No.S8050

4 publications

ETP-46464 Chemical Structure

CAS No. 1345675-02-6

ETP-46464 is a potent and selective inhibitor of ATR with IC50 of 25 nM.

Selleck's ETP-46464 has been cited by 4 publications

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Biological Activity

Description ETP-46464 is a potent and selective inhibitor of ATR with IC50 of 25 nM.
Features Selective ATR inhibitor and particularly toxic to p53-deficient cancer cells. Often used as a pharmacologic probe due to its ideal pharmacological properties.
mTOR [1] ATR [1] DNA-PK [1] PI3Kα [1] ATM [1]
0.6 nM 14 nM 36 nM 170 nM 545 nM
In vitro

ETP-46464 shows almost full activity against ATR at 100 nM. ETP-46464 inhibits the activity of PI3Kα, mTOR and DNA-PKcs with IC50s of 170, 0.6 and 36 nM. ETP-46464 is able to promote the breakage of stalled replication forks. Exposure to ETP-46464 leads the generation of substantial amounts of DNA damage in replicating cells. 1 μM ETP-46464 abrogates the ionizing radiation-induced G2/M checkpoint and leads to the presence of micronuclei or completely fragmented nuclei in cells. ETP-46464 is particularly toxic for p53-deficient cells, which is exacerbated by replicative stress-generating conditions such as the overexpression of cyclin E. [1]


Solubility (25°C)

In vitro DMSO 6 mg/mL (12.75 mM)
Water Insoluble
Ethanol Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 470.52


CAS No. 1345675-02-6
Storage powder
in solvent
Synonyms N/A
Smiles CC(C)(C#N)C1=CC=C(C=C1)N2C3=C4C=C(C=CC4=NC=C3COC2=O)C5=CC6=CC=CC=C6N=C5

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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ATM/ATR Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID