• Skip to primary navigation
  • Skip to main content
  • Skip to footer

LKT Labs

Biochemicals for Life Science Research

  • Products
    • New Products
    • Cancer Biology
    • Cardiovascular
    • Endocrine Signaling and Immunology
    • Metabolic and GI Pathology
    • Microbiology
    • Natural Products
    • Neuroscience
    • Peptides
    • Pharmaceutical Impurities and Derivatives
    • Stem Cell Modulators
  • Services
    • Custom Synthesis
    • Natural Product Isolation
    • Analytical Services
  • Int’l Distributors
  • Support
    • About LKT Labs
    • General Inquiry
    • Bulk Quote Request
    • Document Request
    • Technical Support
    • Catalog Request
    • Product Flyers
  • Contact Us
  • Cart
  • Login / Register
VE-821

VE-821

Product ID V1600
Cas No. 1232410-49-9
Purity ≥98%
Product Unit SizeCostQuantityStock
1 mg $53.00 In stock
5 mg $89.00 In stock
10 mg $142.00 In stock
Bulk Quote

Quicklinks

  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Custom Order

Description

VE-821 is an inhibitor of ataxia telangiectasia and Rad3-related (ATR) kinase, a chromatin-remodeling protein that senses DNA damage and activates the DNA damage checkpoint to induce cell cycle arrest. VE-821 exhibits anticancer activity, inducing chromosome fragmentation, apoptosis, and cell death in vitro. VE-821 decreases phosphorylation of checkpoint kinase (CHK) 1 and induces G2 phase cell cycle arrest in pancreatic cancer cells and leukemia cells, sensitizing them to the effects of radiation.

Product Info

Cas No.

1232410-49-9

Purity

≥98%

Formula

C18H16N4O3S

Formula Wt.

368.41

IUPAC Name

3-Amino-6-[4-(methylsulfonyl)phenyl]-N-phenyl-2-pyrazinecarboxamide

Synonym

VE821

Solubility

DMSO 74 mg/mL (200.86 mM) Water Insoluble Ethanol Insoluble

Appearance

Light yellow powder

Shipping and Storage

Store Temp

-20°C

Ship Temp

Ambient

Downloads

MSDS

V1600 MSDS PDF

Info Sheet

V1600 Info Sheet PDF

References

Flynn RL, Cox KE, Jeitany M, et al. Alternative lengthening of telomeres renders cancer cells hypersensitive to ATR inhibitors. Science. 2015 Jan 16;347(6219):273-7. PMID: 25593184.

Vávrová J, Zárybnická L, Lukášová E, et al. Inhibition of ATR kinase with the selective inhibitor VE-821 results in radiosensitization of cells of promyelocytic leukaemia (HL-60). Radiat Environ Biophys. 2013 Nov;52(4):471-9. PMID: 23934411.

Prevo R, Fokas E, Reaper PM, et al. The novel ATR inhibitor VE-821 increases sensitivity of pancreatic cancer cells to radiation and chemotherapy. Cancer Biol Ther. 2012 Sep;13(11):1072-81. PMID: 22825331.

Reaper PM, Griffiths MR, Long JM, et al. Selective killing of ATM- or p53-deficient cancer cells through inhibition of ATR. Nat Chem Biol. 2011 Apr 13;7(7):428-30. PMID: 21490603.

Custom Order

  • Size of single unit expressed as number (e.g. '500' in the case of 500 mg)
  • Total quantity of unit size desired (e.g. '10' in the case of 10 x 500 mg). If only one unit is desired, you may leave this blank.
  • This field is for validation purposes and should be left unchanged.

Related Products

  • C1624

    Cefuroxime Sodium

    β-lactam; penicillin binding protein inhibitor...

    ≥98%
  • N8277

    Nutlin-3

    Imidzoline derivative; MDM2 inhibitor.

    ≥95%
  • S1843

    L-Selectin

    Endogenous adhesion molecule, binds PKC, calmod...

    ≥95%
  • A6970

    Artemether

    Sesquiterpene lactone derived from Artemesia.

    ≥98%
  • B8274

    Buspirone Hydrochloride

    Azapirone; α1-adrenergic and 5-HT1A partial ag...

    ≥98%
  • S9754

    Syntide 2

    Synthetic peptide, CDPK, PKC, CaMKII substrate....

    ≥95%
  • P200091

    PF-07104091

    CDK2 inhibitor

    ≥98%
  • D3200

    Diacetoxyscirpenol

    Type A trichothecene mycotoxin produced by Fusa...

    ≥98%
  • M1579

    Methazolamide

    Carbonic anhydrase inhibitor.

    ≥98%
  • B165121

    Bedaquiline Fumarate

    Bactericidal

    ≥98%
  • A0978

    Actinonin

    Peptide deformylase, MMP meprin A, aminopeptida...

    ≥98%
  • I7559

    Isoliquiritigenin, natural

    Chalcone; SIRT activator, GABA-A positive modul...

    ≥99%
  • M576486

    Mometasone Furoate

    Synthetic glucocorticoid

    ≥98%
  • M0262

    Maprotiline Hydrochloride

    Tetracycline; FIASMA, histamine H1, 5-HT2, mACh...

    ≥98%
  • C9709

    Cycloheximide

    Protein synthesis inhibitor, used to measure pr...

    ≥98%
  • O486181

    Omeprazole Related Compound B

    Impurity of omeprazole

    ≥99%
  • A2501

    AG-1517

    EGFR inhibitor.

    ≥98%
  • N5766

    L-(-)-Norepinephrine Bitartrate Monohydrate

    Endogenous hormone and neurotransmitter involve...

    ≥98%
  • T1852

    Tenovin-1

    SIRT1/2 inhibitor, indirect p53 activator.

    ≥98%
  • A0776

    ABT-199

    BH3 mimetic; Bcl-2 inhibitor.

    ≥99%

Footer

  • Contact Us
  • About Us
  • Site Map
  • Terms and Conditions
LKT Laboratories, Inc.
545 Phalen Blvd.
St. Paul MN, 55130

Ph: (888)-558-5227
Fax: (888)-558-7329

©2026 LKT Laboratories, All Rights Reserved - Products for research use only