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Skepinone-L | p38 MAPK inhibitor

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Catalog #:

Product Description

Skepinone-L is an ATP-competitive, dibenzosuberone-based inhibitor of p38-MAPK and TNF-a, with IC50 values of 5 and 40 nM, respectively. [1] At 1000 nM, Skepinone-L (Kd = 1.5 nM) did not inhibit any other member of an Ambit panel of 402 kinases. [2]

In vitro HeLa cell assays determined that Skepinone-L showed a concentration-dependent inhibition of HSP27 (Ser82) phosphorylation at an IC50 of 25 nM. [2]. Furthermore, Skepinone-L reduced concentrations of well known p38 MAPK substrates, such as IL-1b and IL10 (IC50 = 30-50 nM). [2]

Technical information:

Chemical Formula:   C24H21F2NO4
CAS #:   1221485-83-1
Molecular Weight:   425.42
Purity:   >99%
Appearance:   Yellow
Chemical Name:   (R)-2-((2,4-difluorophenyl)amino)-7-(2,3-dihydroxypropoxy)-10,11-dihydro-5H-dibenzo[a,d][7]annulen-5-one
Solubility:   Up to 22 mM in DMSO
Synonyms:   Skepinone-L

Shipping Condition: The product is shipped in a glass vial at ambient temperature.
Storage condition: For longer shelf life, store solid powder at 4oC desiccated, or store DMSO solution at -20oC.


1. Koeberle et al., Design, synthesis, and biological evaluation of novel disubstituted dibenzosuberones as highly potent and selective inhibitors of p38 mitogen activated protein kinase. J. Med. Chem. 2012, 55, 5868-5877. Pubmed ID: 22676210
2. Koeberle et al., Skepinone-L is a selective p38 mitogen-activated protein kinase inhibitor. Nat. Chem. Biol. 2012, 8, 141-143. Pubmed ID: 22198732

Other Information:

Product Specification (pdf)
MSDS (pdf)
Certificate of Analysis is available upon request.

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