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PD 0325901
Activators & Inhibitors
Chemical Modulators

PD 0325901 #79241

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PD 0325901: Image 1
Western blot analysis of extracts from HeLa cells, untreated (-) or treated with TPA #4174 (200 nM, 20 min; +) with or without pretreating the cells with PD 0325901 for 1 hour at the indicated concentrations, using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370 (upper), p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb #4695 (middle), and β-Actin (D6A8) Rabbit mAb #8457 (lower).
PD 0325901: Image 2
Chemical structure of PD 0325901.

Product Usage Information

PD 0325901 is supplied as a lyophilized powder. For a 10 mM stock, reconstitute 5 mg of powder in 1.03 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 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Product Description

Molecular Weight 482.2 g/mol
Purity >98%
Molecular Formula C16H14F3IN2O4
CAS 391210-10-9
Solubility Soluble in DMSO at 12 mg/ml.


PD 0325901 is a potent and selective non-ATP competitive MEK inhibitor. This small molecule is highly effective at inhibiting cell growth and proliferation in various cancer cells (1). The potency of PD 0325901 has been illustrated by the inhibition of ERK phosphorylation in mouse and human cell models with an IC50 of 0.33 nM and between 20-50 nM, respectively (1,2). PD 0325901 increases the self-renewal of mouse embryonic stem cells (mESCs) by enhancing the expression of pluripotency genes and acts as an antagonist for retinoic acid (RA) induced cell differentiation (3).
  1. Ciuffreda, L. et al. (2009) Neoplasia 11, 720-31.
  2. Barrett, S.D. et al. (2008) Bioorg Med Chem Lett 18, 6501-4.
  3. Ai, Z. et al. (2016) Stem Cells Int 2016, 1792573.

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 # 79241
Cat. # Size Qty. Price
5 mg
$ 128