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Chemical Modulators

Roscovitine #9885

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Roscovitine: Image 1
Western blot analysis of extracts from HeLa cells treated with Roscovitine (20 μM) for the indicated times using Phospho-MAPK/CDK Substrates (PXSP or SPXR/K) (34B2) Rabbit mAb #2325 (left) or Phospho-(Ser) CDKs Substrate Antibody #2324 (right).
Roscovitine: Image 2
Western blot analysis of extracts from HeLa cells treated with Roscovitine (20 μM) for the indicated times using an antibody to Rb.
Roscovitine: Image 3
Structure of Roscovitine

Product Usage Information

Roscovitine [(R) stereoisomer] is supplied as a 1 mg powder. Store at or below -20ºC. Before use, dissolve powder in 143 μl DMSO or MeOH to make a 20 mM stock solution. The suggested working concentration is 20 μM in tissue culture medium. Treat cells for 4-24 hours. Store solution at -20ºC.


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 354.45 g/mol
Purity >99%
Molecular Formula C19H28N6O
CAS 186692-46-6
Solubility Soluble in DMSO and EtOH at 200mg/ml.


Roscovitine is a cell permeable reversible selective inhibitor of cyclin-dependent kinases CDK1 (cdc2), CDK2 and CDK5 (1). A purine analog, this drug competes for the binding site of ATP in the catalytic cleft. Treatment of cultured cells with roscovitine can cause cell cycle arrest or apoptosis (1-4). The IC50 for cdc2 activity is 0.65 μM in vitro (1).
  1. Meijer, L. et al. (1997) Eur J Biochem 243, 527-36.
  2. Whittaker, S.R. et al. (2007) Cell Cycle 6, 3114-31.
  3. Dey, A. et al. (2008) Cell Death Differ 15, 263-73.
  4. Wojciechowski, J. et al. (2003) Int J Cancer 106, 486-95.

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 # 9885
Cat. # Size Qty. Price
1 mg
$ 63