ATM/ATR are members of the PI3 family of serine-threonine kinases and function as essential links between the sensors and effectors of the DNA damage response. The roles of ATM and ATR partially overlap and are cooperative; however they are also known to play distinct roles in protecting the cell from DNA damage. ATM is mostly responsible for sending signals from DSBs (double-strand breaks) induced by ionizing radiation while the closely related ATR responds to UV damage or stalled replication forks. ATM and ATR are known to phosphorylate common as well as specific substrates to activate checkpoint signaling. The G1, S, and G2 cell cycle checkpoints are primarily regulated by the ATM (ataxia telangiectasia, mutated) and ATR (ATM and Rad3-related) protein kinases.


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CGK 733

CGK733 is a potent ATM/ATR inhibitor, used for the research of cancer.

  • CAS Number: 905973-89-9
  • MF: C23H18Cl3FN4O3S
  • MW: 555.836
  • Catalog: ATM/ATR
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CP-466722

CP-466722 is a rapidly reversible inhibitor of ATM, with an IC50 of 4.1 μM, and has no effects on PI3K or closely related PI3K-like protein kinase (PIKK) family members.

  • CAS Number: 1080622-86-1
  • MF: C17H15N7O2
  • MW: 349.347
  • Catalog: ATM/ATR
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 642.3±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 342.2±34.3 °C

ATM Inhibitor-1

ATM Inhibitor-1 is a highly potent, selective and orally active ATM inhibitor, with an IC50 of 0.7 nM, shows weak activity against mTOR (IC50, 21 μM), DNAPK (IC50, 2.8 μM), PI3Kα (IC50, 3.8 μM), PI3Kβ (IC50, 10.3 μM), PI3Kγ (IC50, 3 μM) and PI3Kδ (IC50, 0.73 μM). ATM Inhibitor-1 exhibits anti-tumor activity[1].

  • CAS Number: 2135639-94-8
  • MF: C27H36N6O3
  • MW: 492.61
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ATR-IN-18

ATR-IN-18 (compound 2) is an orally active and potent ATR kinase inhibitor, with an IC50 of 0.69 nM. ATR-IN-18 shows antiproliferative activity in LoVo cells, with an IC50 of 37.34 nM. ATR-IN-18 has anti-tumor activity[1].

  • CAS Number: 2766407-55-8
  • MF: C19H22F3N7O5S
  • MW: 517.48
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AZ31

AZ31 is a a potent, highly selective, and orally active ATM inhibitor with an IC50 of <1.2 nM for ATM enzyme, and an IC50 of 46 nM for ATM in cell. AZ31 shows excellent selectivity over ATR (>500-fold) and excellent PIKK-family selectivity and pan-kinase selectivity. AZ31 is a potent radiosensitizer in vitro, it can be used for the research of cancer[1].

  • CAS Number: 2088113-98-6
  • MF: C24H28N4O3
  • MW: 420.50412
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ATR-IN-17

ATR-IN-17 (compound 88) is a potent ATR kinase inhibitor. ATR-IN-17 shows good anticancer activity in LoVo cells, with an IC50 of 1 nM[1].

  • CAS Number: 2761194-15-2
  • MF: C22H28N6O2S
  • MW: 440.56
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ATR-IN-7

ATR-IN-7 is a potent inhibitor of ATR. ATR is a class of protein kinases involved in genome stability and DNA damage repair, and is a member of the PIKK family. ATR-IN-7 has the potential for the research of ATR kinase-mediated diseases such as proliferative diseases and cancer (extracted from patent WO2021238999A1, compound 1)[1].

  • CAS Number: 2741917-74-6
  • MF: C21H22FN7O
  • MW: 407.44
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ATR-IN-24

ATR-IN-24 (Compound 1) is a ATR inhibitor. ATR-IN-24 has anticancer activity[1].

  • CAS Number: 2370889-43-1
  • MF: C23H26N6O2
  • MW: 418.49
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ATR-IN-16

ATR-IN-16 (compound 46) is a potent ATR kinase inhibitor. ATR-IN-16 shows good anticancer activity in LoVo cells, with an IC50 of 410 nM[1].

  • CAS Number: 2756589-62-3
  • MF: C19H25N7O
  • MW: 367.45
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AZD-0156

AZD0156 is an oral, potent and selective ATM inhibitor with an IC50 of 0.58 nM.

  • CAS Number: 1821428-35-6
  • MF: C26H31N5O3
  • MW: 461.556
  • Catalog: ATM/ATR
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 628.3±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 333.8±31.5 °C

KU55933 (ATM Kinase Inhibitor)

KU-55933 is a potent ATM inhibitor with an IC50 and Ki of 12.9 and 2.2 nM, respectively, and is highly selective for ATM as compared to DNA-PK, PI3K/PI4K, ATR and mTOR.

  • CAS Number: 587871-26-9
  • MF: C21H17NO3S2
  • MW: 395.495
  • Catalog: Autophagy
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 628.0±55.0 °C at 760 mmHg
  • Melting Point: 229.98° C
  • Flash Point: 333.6±31.5 °C

Hexapeptide-11

Hexapeptide-11 is a bioactive peptide with anti-aging effect. Hexapeptide-11 protects fibroblasts against oxidative stress-mediated premature cellular senescence by mediating a downregulation of cellular proteins, such as ataxia telangiectasia mutated (ATM) and p53 [1].

  • CAS Number: 161258-30-6
  • MF: C36H48N6O7
  • MW: 676.80200
  • Catalog: MDM-2/p53
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ATR-IN-10

ATR-IN-10 is a potent and highly selective inhibitor of ataxia telangiectasia mutated and Rad3-Related (ATR) kinase with an IC50 value of 2.978 μM.

  • CAS Number: 2713577-93-4
  • MF: C27H24N4O
  • MW: 420.51
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Ro 90-7501

Ro 90-7501 is an amyloid β42 (Aβ42) fibril assembly inhibitor that reduces Aβ42-induced cytotoxicity (EC50 of 2 μM). Ro 90-7501 inhibits ATM phosphorylation and DNA repair. RO 90-7501 selectively enhances toll-like receptor 3 (TLR3) and RIG-I-like receptor (RLR) ligand-induced IFN-β gene expression and antiviral response[2]. Ro 90-7501 also inhibits protein phosphatase 5 (PP5) in a TPR-dependent manner[3]. Ro 90-7501 has significant radiosensitizing effects on cervical cancer cells[4].

  • CAS Number: 293762-45-5
  • MF: C20H16N6
  • MW: 340.38100
  • Catalog: Apoptosis
  • Density: 1.443g/cm3
  • Boiling Point: 751.035ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 449.122ºC

ETP-46464

ETP-46464 is an effective mTOR and ATR inhibitor with IC50s of 0.6 and 14 nM, respectively.

  • CAS Number: 1345675-02-6
  • MF: C30H22N4O2
  • MW: 470.521
  • Catalog: ATM/ATR
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 709.3±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 382.7±32.9 °C

ATR-IN-8

ATR-IN-8 is a potent inhibitor of ATR. ATR is a key enzyme in the homologous recombination repair pathway and belongs to the PIKK family. ATR-IN-8 has the potential for the research of cancer diseases (extracted from patent WO2021143821A1, compound 3)[1].

  • CAS Number: 2672511-20-3
  • MF: C20H22N6O2S
  • MW: 410.49
  • Catalog: ATM/ATR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A