Date published: 2025-10-25

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BIBR 1532 (CAS 321674-73-1)

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Alternate Names:
(E)-2-(3-(naphthalen-2-yl)but-2-enamido)benzoic acid
Application:
BIBR 1532 is a selective telomerase inhibitor
CAS Number:
321674-73-1
Purity:
≥96%
Molecular Weight:
331.37
Molecular Formula:
C21H17NO3
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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BIBR 1532 is a compound suggested to act as a selective and specific TERT (telomerase) inhibitor. Studies indicate that BIBR 1532 inhibits the TERT (reverse transcriptase of telomerase, hTERT), and shortens the length of the telomere. In addition, reports indicate that BIBR 1532 has the ability to stop cell proliferation in lung cancer cell studies after 120 days.


BIBR 1532 (CAS 321674-73-1) References

  1. A highly selective telomerase inhibitor limiting human cancer cell proliferation.  |  Damm, K., et al. 2001. EMBO J. 20: 6958-68. PMID: 11742973
  2. Inhibition of telomerase by BIBR 1532 and related analogues.  |  Barma, DK., et al. 2003. Bioorg Med Chem Lett. 13: 1333-6. PMID: 12657276
  3. Selective cytotoxicity and telomere damage in leukemia cells using the telomerase inhibitor BIBR1532.  |  El-Daly, H., et al. 2005. Blood. 105: 1742-9. PMID: 15507522
  4. Pharmacological telomerase inhibition can sensitize drug-resistant and drug-sensitive cells to chemotherapeutic treatment.  |  Ward, RJ. and Autexier, C. 2005. Mol Pharmacol. 68: 779-86. PMID: 15939802
  5. Telomerase and its potential for therapeutic intervention.  |  Phatak, P. and Burger, AM. 2007. Br J Pharmacol. 152: 1003-11. PMID: 17603541
  6. Telomerase inhibitors and 'T-oligo' as cancer therapeutics: contrasting molecular mechanisms of cytotoxicity.  |  Rankin, AM., et al. 2008. Anticancer Drugs. 19: 329-38. PMID: 18454043
  7. Consequences of telomerase inhibition by BIBR1532 on proliferation and chemosensitivity of chondrosarcoma cell lines.  |  Parsch, D., et al. 2008. Cancer Invest. 26: 590-6. PMID: 18584350
  8. Direct short-term cytotoxic effects of BIBR 1532 on acute promyelocytic leukemia cells through induction of p21 coupled with downregulation of c-Myc and hTERT transcription.  |  Bashash, D., et al. 2012. Cancer Invest. 30: 57-64. PMID: 22236190
  9. BIBR 1532 increases arsenic trioxide-mediated apoptosis in acute promyelocytic leukemia cells: therapeutic potential for APL.  |  Bashash, D., et al. 2013. Anticancer Agents Med Chem. 13: 1115-25. PMID: 23293885
  10. Glucose restriction decreases telomerase activity and enhances its inhibitor response on breast cancer cells: possible extra-telomerase role of BIBR 1532.  |  Wardi, L., et al. 2014. Cancer Cell Int. 14: 60. PMID: 25089119
  11. Telomerase inhibition decreases alpha-fetoprotein expression and secretion by hepatocellular carcinoma cell lines: in vitro and in vivo study.  |  Tahtouh, R., et al. 2015. PLoS One. 10: e0119512. PMID: 25822740
  12. Critical Role for Telomerase in the Mechanism of Flow-Mediated Dilation in the Human Microcirculation.  |  Beyer, AM., et al. 2016. Circ Res. 118: 856-66. PMID: 26699654
  13. Inhibition of telomerase potentiates enzalutamide efficiency of androgen-sensitive human prostate cancer cells.  |  Gecgel, KK., et al. 2017. J BUON. 22: 1570-1576. PMID: 29332354

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

BIBR 1532, 10 mg

sc-203843
10 mg
$189.00

BIBR 1532, 50 mg

sc-203843A
50 mg
$733.00

Hello, I've read the information about the solubility of this reagent (BIBR1532), but it is not clear whether I should use DMSO or ethanol do dilute the powder to a final concentration of 5mM. Could you assist me with this, please?

Asked by: Anonymous
Thank you for your question. This compound is soluble in DMSO (up to 100 mM) or ethanol (up to 25 mM), or water (<1 mg/ml at 25° C). BIBR 1532 (CAS 321674-73-1) has a molecular weight of 331.37 g/mol.
Answered by: Tech Support Europe
Date published: 2024-03-28
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Rated 5 out of 5 by from BashashBashash, D. et al. (PubMed 23293885) found that BIBR 1532, a selective telomerase inhibitor, increases arsenic trioxide-mediated apoptosis in acute promyelocytic leukemia cells. -SCBT Publication Review
Date published: 2015-04-30
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BIBR 1532 is rated 5.0 out of 5 by 1.
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