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Activators & Inhibitors
Chemical Modulators

IBMX #13630

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IBMX: Image 1
Western blot analysis of extracts from C2C12 cells, untreated (-) or treated with Forskolin #3828 (10 μM, 30 min; +) with or without IBMX pretreatment (4 hr) at the indicated concentrations, using Phospho-VASP (Ser157) Antibody #3111 (upper), Phospho-VASP (Ser239) Antibody #3114 (middle), or VASP (9A2) Rabbit mAb #3132 (lower).
IBMX: Image 2
Chemical structure of IBMX.

Product Usage Information

IBMX is supplied as a lyophilized powder. For a 250 mM stock, reconstitute the 50 mg in 899.7 µl DMSO. Working concentrations and length of treatment can vary depending on the desired effect, but it is typically used at 10-1,000 µM for 15 min-4 hr.


Store lyophilized or in solution at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Product Description

Molecular Weight 222.3 g/mol
Purity >98%
Molecular Formula C10H14N4O2
CAS 28822-58-4
Solubility Soluble in DMSO at 10mg/ml and EtOH at 5mg/ml.


3-isobutyl-1-methylxanthine (IBMX) is a nonselective inhibitor of cAMP and cGMP phosphodiesterases (PDEs). Research studies show that IBMX inhibits many members of the PDE family, with the exceptions of PDE8A, PDE8B, and PDE9 (1-4). Treatment of cells with IBMX promotes accumulation of cAMP and cGMP, which leads to activation of cyclic-nucleotide-regulated protein kinases (5,6). Additional research indicates that IBMX can promote neuronal progenitor cell maturation in vitro (7).
  1. Fawcett, L. et al. (2000) Proc Natl Acad Sci U S A 97, 3702-7.
  2. Fisher, D.A. et al. (1998) Biochem Biophys Res Commun 246, 570-7.
  3. Hayashi, M. et al. (1998) Biochem Biophys Res Commun 250, 751-6.
  4. Soderling, S.H. et al. (1998) J Biol Chem 273, 15553-8.
  5. Chanoit, G. et al. (2011) Cardiovasc Drugs Ther 25, 299-306.
  6. Zhang, R. et al. (2011) PLoS One 6, e20780.
  7. Lepski, G. et al. (2013) Front Cell Neurosci 7, 155.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

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 # 13630
Cat. # Size Qty. Price
50 mg
$ 80