• 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

  • S8247

    Sulfasalazine

    Mesalazine derivative, sulfa drug; sepiapterin ...

    ≥98%
  • S3453

    Sinigrin Monohydrate, synthetic

    ITC precursor found in cruciferous vegetables.<...

    ≥98%
  • C2961

    Chondroitin Sulfate, chicken

    Polyanionic sulfated glycosaminoglycan, endogen...

    ≥90%
  • P9668

    Pyrantel Pamoate

    Mixture of pyrantel, a thiophene, and pamoic ac...

    ≥98%
  • P1634

    Peimine

    Steroidal alkaloid found in Fritillaria; TRPV1 ...

    ≥98%
  • E6397

    EPZ6438

    Potent and selective inhibitor

    ≥98%
  • N8663

    NVP-LDE225 Diphosphate

    Smo inhibitor.

    ≥98%
  • C0344

    Calphostin C

    Found in Cladosporium; PKC inhibitor.

    ≥95%
  • A4444

    L-Alliin

    Cysteine derivative found in Allium; NMDA NR2A/...

    ≥98%
  • A7085

    Arvanil

    CB1 agonist, TRPV1 agonist.

    ≥98%
  • T0142

    TAK-733

    MEK inhibitor.

    ≥98%
  • F4557

    Floxuridine

    5-Fluorouracil derivative, fluorinated pyrimidi...

    ≥98%
  • D019601

    Dapagliflozin

    SGLT2 inhibitor

    ≥98%
  • P600006

    RP-6306

    PKMYT1 inhibitor

    ≥98%
  • C0377

    Catharanthine Sulfate

    Alkaloid found in Catharanthus, precursor in sy...

    ≥98%
  • D1777

    Desmopressin Acetate

    Synthetic peptide, vasopressin derivative; V2 a...

    ≥95%
  • L961000

    LY-3295668

    Aurora kinase A inhibitor

    ≥99%
  • N3225

    Nigericin Sodium

    Polyether cationic ionophore.

    ≥98%
  • T9969

    Tyrphostin AG490

    JAK2 inhibitor, potential EGFR inhibitor.

    ≥98%
  • T3324

    Tigecycline

    Glycylcycline; protein synthesis inhibitor.

    ≥98%

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