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Bisindolylmaleimide I (GF-109203X)
Activators & Inhibitors
Chemical Modulators

Bisindolylmaleimide I (GF-109203X) #37969

Citations (0)
Chemical structure of Bisindolylmaleimide I (GF-109203X).

Product Usage Information

Bisindolylmaleimide I (GF-109203X) is supplied as a lyophilized powder. For a 10 mM stock, reconstitute 1 mg of powder in 0.24 mL of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.


Store lyophilized at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 2 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Product Description

Molecular Weight 412.5 g/mol
Purity >98%
Molecular Formula C25H24N4O2
CAS 133052-90-1
Solubility Soluble in DMSO at 10 mg/mL or DMF at 10 mg/mL.


Bisindolylmaleimide I (BIS), also known as GF-109203X, is a potent inhibitor of PKC (1,2). In vitro, the IC50 of BIS is 10-20 nM for PKCα/β/γ and 100-200 nM for PKCδ/ε isoforms. The in vitro IC50 for PKCζ is approximately 6 μM, indicating that BIS is a very weak inhibitor for this isoform. In in vivo cellular assays, the IC50 of BIS for PKC is 0.2-2 μM (1,3).

Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not for Use in Diagnostic Procedures.
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To Purchase # 37969
Cat. # Size Qty. Price
1 mg