1. PI3K/Akt/mTOR
  2. PI3K mTOR
  3. PKI-179

PKI-179 is a potent and orally active dual PI3K/mTOR inhibitor, with IC50s of 8 nM, 24 nM, 74 nM, 77 nM, and 0.42 nM for PI3K-α, PI3K-β, PI3K-γ, PI3K-δ and mTOR, respectively. PKI-179 also exhibits activity over E545K and H1047R, with IC50s of 14 nM and 11 nM, respectively. PKI-179 shows anti-tumor activity in vivo.

For research use only. We do not sell to patients.

PKI-179 Chemical Structure

PKI-179 Chemical Structure

CAS No. : 1197160-28-3

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Solid + Solvent
10 mM * 1 mL in DMSO
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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of PKI-179:

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  • Biological Activity

  • Purity & Documentation

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Description

PKI-179 is a potent and orally active dual PI3K/mTOR inhibitor, with IC50s of 8 nM, 24 nM, 74 nM, 77 nM, and 0.42 nM for PI3K-α, PI3K-β, PI3K-γ, PI3K-δ and mTOR, respectively. PKI-179 also exhibits activity over E545K and H1047R, with IC50s of 14 nM and 11 nM, respectively. PKI-179 shows anti-tumor activity in vivo[1][2].

IC50 & Target[1]

mTOR

0.42 nM (IC50)

PI3Kα

8 nM (IC50)

PI3Kβ

24 nM (IC50)

PI3Kγ

74 nM (IC50)

PI3Kδ

77 nM (IC50)

E545K

14 nM (IC50)

H1047R

11 nM (IC50)

In Vitro

PKI-179 inhibits the cell proliferation, with IC50s of 22 nM and 29 nM for MDA361 and PC3 cells, respectively[1].
PKI-179 shows inhibitory activity against a panel of 361 other kinases, hERG and cytochrome P450 (CYP) isoforms at concentrations up to >30 μM, but does have activity for CYP2C8 (IC50=3 μM)[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

PKI-179 (5-50 mg/kg; p.o. once daily for 40 days) inhibits the tumor growth and is well tolerated in nude mice bearing MDA-361 human breast cancer tumors[1].
PKI-179 (50 mg/kg; p.o.) results in good inhibition of PI3K signaling in nude mice bearing MDA361 tumor xenografts[1].
PKI-179 exhibits good oral bioavailability (98% in nude mouse, 46% in rat, 38% in monkey, and 61% in dog) and a high half-life (>60 min) [1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Nude mice bearing MDA-361 human breast cancer tumors[1]
Dosage: 5, 10, 25, 50 mg/kg
Administration: I.p. every 3 days for 4 weeks
Result: Exhibited pronounced tumor growth arrest when dosed above 10 mg/kg.
No significant weight loss of tested animals was observed for all different dosages.
Clinical Trial
Molecular Weight

488.54

Formula

C25H28N8O3

CAS No.
Appearance

Solid

Color

Off-white to yellow

SMILES

O=C(NC1=CC=NC=C1)NC2=CC=C(C3=NC(N4C5CCC4COC5)=NC(N6CCOCC6)=N3)C=C2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (204.69 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.0469 mL 10.2346 mL 20.4692 mL
5 mM 0.4094 mL 2.0469 mL 4.0938 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (5.12 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (5.12 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.0469 mL 10.2346 mL 20.4692 mL 51.1729 mL
5 mM 0.4094 mL 2.0469 mL 4.0938 mL 10.2346 mL
10 mM 0.2047 mL 1.0235 mL 2.0469 mL 5.1173 mL
15 mM 0.1365 mL 0.6823 mL 1.3646 mL 3.4115 mL
20 mM 0.1023 mL 0.5117 mL 1.0235 mL 2.5586 mL
25 mM 0.0819 mL 0.4094 mL 0.8188 mL 2.0469 mL
30 mM 0.0682 mL 0.3412 mL 0.6823 mL 1.7058 mL
40 mM 0.0512 mL 0.2559 mL 0.5117 mL 1.2793 mL
50 mM 0.0409 mL 0.2047 mL 0.4094 mL 1.0235 mL
60 mM 0.0341 mL 0.1706 mL 0.3412 mL 0.8529 mL
80 mM 0.0256 mL 0.1279 mL 0.2559 mL 0.6397 mL
100 mM 0.0205 mL 0.1023 mL 0.2047 mL 0.5117 mL
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PKI-179 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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PKI-179
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