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Catalog No.
Potent and selective PI 3-Kγ inhibitor
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
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In stock
In stock
In stock

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AS-605240 is a selective PI3K γ inhibitor with an IC50 of 8 nM. [1]

PI3Ks are a family of enzymes, which phosphorylate the 3’- OH position of the inositol ring of phosphoinositides.They have been divided into three classes on the basis of structural features and in vitro lipid substrate specificity. The three class-Ia PI3-kinases (p110 α / β / δ ) and the sole class-Ib PI 3-kinase (p110 γ ) couple growth factor receptors and G-protein-coupled receptors, respectively, to a wide range of downstream pathways. Signal transduction via the PI3K/Akt pathway is essential for regulating cellular responses, including proliferation, survival, migration, motility and tumorigenesis, in a variety of cell types. The key selectivity features were identified by co-crystallization with PI3Kγ, which revealed that thiazolidinedione nitrogen makes a salt – bridge interaction with the side chain of Lys-833, and also forms the link to Val-882.[1,2]

AS-605240 is a cell permeable inhibitor for PI3Ks and inhibits p110 α/β/γ/δ in vitro?with IC50 values of 0.06, 0.27, 0.008 0.3 μΜ, respectively. AS-605240 was tested its ability to inhibit C5a-mediated PKB phosphorylation in RAW264 mouse macrophages and AS-605240 showed an IC50 of 0.09 mM. [1]

As in many in?ammatory processes, neutrophils are predominant in the initial in?ux of leukocytes, followed by monocytes-macrophages and lymphocytes. in vivo efficacy in blocking leukocyte migration assays were conducted, AS-605240 was tested in two different mouse models of peritonitis, including RANTES-induced or thioglycollate, the outcome showed ED50 of 9.1 mg/kg and 10 mg/kg respectively. AS-605240 also show that it is an orally active, selective PI3Kγ inhibitor suppresses joint inflammation and damage in a mouse model of collagen-induced arthritis.[1]

[1].  Camps M, Rückle T, Ji H, et al. Blockade of PI3Kγ suppresses joint inflammation and damage in mouse models of rheumatoid arthritis[J]. Nature medicine, 2005, 11(9): 936-943.
[2].  Marone R, Cmiljanovic V, Giese B, et al. Targeting phosphoinositide 3-kinase—moving towards therapy[J]. Biochimica et Biophysica Acta (BBA)-Proteins and Proteomics, 2008, 1784(1): 159-185.

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
Cas No.648450-29-7
Solubility≥4.28mg/mL in DMSO with gentle warming,insoluble in EtOH,insoluble in H2O
Chemical Name(5Z)-5-(quinoxalin-6-ylmethylidene)-1,3-thiazolidine-2,4-dione
SDFDownload SDF
Canonical SMILESC1=CC2=NC=CN=C2C=C1C=C3C(=O)NC(=O)S3
Shipping ConditionEvaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.
General tipsFor obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.

Biological Activity

Description AS-605240 is a selective inhibitor of PI3Kγ with an IC50 value of 8 nM.
Targets PI3Kγ PI3Kα PI3Kβ PI3Kδ    
IC50 8 nM 60 nM 270 nM 300 nM    

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