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Cat. No. M5231
GSK2269557 Structure

Nemiralisib; GSK-2269557

Size Price Availability Quantity
5mg USD 130 In stock
10mg USD 220 In stock
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Quality Control
  • Current batch:
  • Purity >99%
  • COA
  • MSDS
Biological Activity

GSK-2269557 has low oral bioavailability (F=2%) and in vivo clearance of 28 mL/min/kg but has a high volume of distribution of 6.3 L/kg. GSK-2269557 induces concentration-dependent increases in QT interval and Tp-e at 0.3 and 1 μM (1 and 0.5 Hz) and an increase in QRS at 1 μM (2 Hz), however, no treatment-related torsades de pointes (TdP) arrhythmias are observed. In a disease relevant brown Norway rat acute OVA model of Th2 driven lung inflammation, GSK-2269557 is shown to protect against eosinophil recruitment with an ED50 of 67 μg/kg and dose-dependently reduces recruitment of all leukocyte subpopulations and IL-13 in the lungs.

Cell Experiment
Cell lines
Preparation method
Incubation time
Animal Experiment
Animal models Sprague Dawley male rats
Formulation DMSO/PEG200/water (5:45:50 v/v/v)
Dosages 3 mg/kg; IV:1 mg/kg
Administration oral/i.v.
Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 440.54
Formula C26H28N6O
CAS Number 1254036-71-9
Purity >99%
Solubility 88 mg/mL in DMSO
Storage at -20°C

Optimization of Novel Indazoles as Highly Potent and Selective Inhibitors of Phosphoinositide 3-Kinase δ for the Treatment of Respiratory Disease.
Down K, et al. J Med Chem. 2015 Sep 24;58(18):7381-99. PMID: 26301626.

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Keywords: GSK2269557, Nemiralisib; GSK-2269557 supplier, PI3K, inhibitors

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