Cat. No. 4283

Begacestat C9H8ClF6NO3S2 [769169-27-9]

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Alternative Name: GSI-953

Chemical Name: 5-Chloro-N-[(1S)-3,3,3-trifluoro-1-(hydroxymethyl)-2-(trifluoromethyl)propyl]-2-thiophenesulfonamide

Biological Activity

γ-secretase inhibitor; selectively inhibits cleavage of amyloid precursor protein (APP) over Notch. Lowers levels of Aβ42 and Aβ40 (EC50 values are 12.4 and 14.8 nM respectively in cells expressing human recombinant APP). Orally active.

Licensing Information

Sold for research purposes under agreement from Pfizer Inc.

Technical Data

Soluble to 100 mM in DMSO and to 100 mM in ethanol
>98 %
Store at +4°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet


Mayer et al (2008) Discovery of begacestat, a Notch-1-sparing gamma secretase inhibitor for the treatment of Alzheimer's disease. J.Med.Chem. 51 7348. PMID: 19012391.

Martone et al (2009) Begacestat (GSI-953): a novel, selective thiophene sulfonamide inhibitor of amyloid precursor protein γ-secretase for the treatment of Alzheimer's disease. J.Pharmacol.Exp.Ther. 331 598. PMID: 19671883.

If you know of a relevant citation for this product please let us know.

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Keywords: Begacestat, supplier, GSI953, Begacestat, pfizer, gamma, gamma-secretase, γ, g-secretase, inhibitors, APP, amyloid, precursor, proteins, notch, AB40, Abeta40, Aβ40, AB42, Abeta42, Aβ42, amyloidbeta, amyloidb, amyloidβ, γ-Secretase Inhibitors

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