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528117

Sigma-Aldrich

PI 3-K inhibitor IX, PIK-90

The PI 3-K inhibitor IX, PIK-90, also referenced under CAS 677338-12-4, controls the biological activity of PI 3-K. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

Synonym(s):

PI 3-K inhibitor IX, PIK-90, N-(2,3-Dihydro-7,8-dimethoxyimidazo[1,2-c]quinazolin-5-yl)-3-pyridinecarboxamide, mTOR Inhibitor VI

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About This Item

Empirical Formula (Hill Notation):
C18H17N5O3
CAS Number:
Molecular Weight:
351.36
UNSPSC Code:
12352200

Quality Level

Assay

≥98% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

pale yellow

solubility

DMSO: 0.5 mg/mL

shipped in

wet ice

storage temp.

−20°C

General description

A cell-permeable imidazoquinazoline compound that acts as a potent, reversible, and ATP-competitive inhibitor against all three classes of PI 3-K kinases (IC50 = 11, 18, 47, 58, 64, 350, and 830 nM against p110α, p110γ, PI 3-KC2α, p110δ, PI 3-KC2β, p110β, and hsVPS34, respectively), as well as several PIKKs (IC50 = 13, 610, and 1050 nM against DNA-PK, ATM, and mTORC1, respectively) and PI 4-KIIIα (IC50 = 830 nM), while exhibiting much reduced potency against PI 4-KIIIβ and ATR (IC50 = 3.1 and 15 µM, respectively) and little or no activity toward PI 4-KIIα, PIPKs (IC50 >100 µM), and a panel of 36 commonly studied protein kinases (<15% inhibition at 10 µM). Effectively suppreses insulin-stimulated phosphorylations of Akt and rpS6 in 3T3-L1 adipocytes and L6 myotubes in a dose-dependent manner in vitro (by >90% at 2.5 µM) and completely prevents insulin-induced blood glucose decline in mice in vivo (10 mg/ml, i.p.).

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Preparation Note

Slight warming may be required to for complete solubility.

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Fan, Q.W., et al. 2007. Cancer Res.67, 7960.
Fan, Q.W., et al. 2006. Cancer Cell9, 341.
Knight, Z.A., et al. 2006. Cell125, 733.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Keishi Kishimoto et al.
Nature protocols, 17(11), 2699-2719 (2022-08-18)
Development of visceral organs such as the esophagus, lung, liver and stomach are coordinated by reciprocal signaling interactions between the endoderm and adjacent mesoderm cells in the fetal foregut. Although the recent successes in recapitulating developmental signaling in vitro has

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