HBX 41108

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Cat.No. 4285 - HBX 41108 | C13H3ClN4O | CAS No. 924296-39-9
Description: Selective USP7 inhibitor
Chemical Name: 7-Chloro-9-oxo-9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile
Purity: ≥98% (HPLC)

Biological Activity

Inhibitor of ubiquitin-specific protease (USP) 7 activity (IC50 = 424 nM). Displays uncompetitive inhibition. Also inhibits USP7-mediated p53 deubiquitination (IC50 = 0.8 μM). Stabilizes p53 and inhibits cancer cell growth; induces p53-dependent apoptosis in p53 wild type and null isogenic cancer cell lines.

Licensing Information

Sold for research use only under patent license from Hybrigenics S.A.

Technical Data

M. Wt 266.64
Formula C13H3ClN4O
Storage Store at -20°C
Purity ≥98% (HPLC)
CAS Number 924296-39-9
PubChem ID 16065773
Smiles O=C2C1=CC(Cl)=CC=C1C3=C2N=C(C#N)C(C#N)=N3

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.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 26.66 100

Preparing Stock Solutions

The following data is based on the product molecular weight 266.64. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 3.75 mL 18.75 mL 37.5 mL
5 mM 0.75 mL 3.75 mL 7.5 mL
10 mM 0.38 mL 1.88 mL 3.75 mL
50 mM 0.08 mL 0.38 mL 0.75 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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Safety Datasheet


References are publications that support the products' biological activity.

Colland et al (2009) Small-molecule inhibitor of USP7/HAUSP ubiquitin protease stabilizes and activates p53 in cells. Mol.Cancer Ther. 8 2286 PMID: 19671755

Colombo et al (2010) Synthesis and biological evaluation of 9-oxo-9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile analogues as potential inhibitors of deubiquitinating enzymes. ChemMedChem 5 552 PMID: 20186914

If you know of a relevant reference for HBX 41108, please let us know.

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New Product Guide (Spring/Summer 2017)

Our new product guide highlights over 130 new products added to the Tocris Bioscience range during the first half of 2017.

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