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IPA-3

Name: IPA-3
Brand: TargetMol
SKU: T6546
Price: 39 USD
Availability: InStock
Rating: 5 (10 reviews)

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Catalog No. T6546Cas No. 42521-82-4

Alias IPA3, IPA 3

IPA-3 is a selective, non-ATP competitive Pak1 inhibitor with an IC50 of 2.5 μM, and it does not inhibit group II PAKs (PAKs 4-6).

IPA-3

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Purity: 97.40%

Catalog No. T6546Alias IPA3, IPA 3Cas No. 42521-82-4

IPA-3 is a selective, non-ATP competitive Pak1 inhibitor with an IC50 of 2.5 μM, and it does not inhibit group II PAKs (PAKs 4-6).

Pack Size	Price	USA Warehouse	Global Warehouse
5 mg	$39	In Stock	In Stock
10 mg	$61	In Stock	In Stock
25 mg	$118	In Stock	In Stock
50 mg	$215	In Stock	In Stock
100 mg	$379	-	In Stock
1 mL x 10 mM (in DMSO)	$43	In Stock	In Stock

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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]

All TargetMol products are for research purposes only and cannot be used for human consumption. We do not provide products or services to individuals. Please comply with the intended use and do not use TargetMol products for any other purpose.

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Purity:97.40%

Appearance:Solid

Color:Yellow

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COA HNMR LCMS

Product Introduction

Bioactivity

Description	IPA-3 is a selective, non-ATP competitive Pak1 inhibitor with an IC50 of 2.5 μM, and it does not inhibit group II PAKs (PAKs 4-6).
Targets&IC50	PAK1:2.5 μM
In vitro	IPA-3 is a non-ATP-competitive, allosteric inhibitor of p21-activated kinase 1 (Pak1), with PIR3.5 serving as its control compound. It effectively blocks Cdc42-stimulated and sphingosine-dependent autophosphorylation of Pak1 on Thr423, without targeting the protein's exposed cysteine residues. The efficacy of IPA-3 is dependent on its disulfide bond; reduction by dithiothreitol (DTT) nullifies its inhibitory action on Pak1. Notably, IPA-3 obstructs Pak1 activation by various activators but does not affect already preactivated Pak1; it also impedes PDGF-induced Pak activation in mouse embryonic fibroblasts. This inhibition is partially achieved through covalent binding to Pak1's regulatory domain, an interaction that is both time- and temperature-sensitive, and prevents Cdc42 engagement. Additionally, IPA-3 demonstrates a direct bond to the Pak1 autoregulatory domain and offers reversible inhibition of PMA-induced membrane ruffling in cells.
Kinase Assay	Pak1 (150 nM final) is pre-incubated with MBP (8.3 μM), indicated proteins, and IPA-3 or DMSO in Kinase buffer for 20 minutes at 4°C. Cdc42-GTPγS (3.2 μM) is then added and the reaction is pre-equilibrated 10 minutes at 30°C. Kinase reactions are started by the addition of ATP (to 30 μM) containing [32P]ATP and are incubated 10 min and analyzed by SDS-PAGE and autoradiography.
Cell Research	Human primary schwannoma cells are grown on 96 well plates for 2 days. Cells are left untreated or treated with 5 μM IPA-3, 20 μM IPA-3 or 20 μM PIR-3.5 for 24 hours. The MTS-solution is left on the cells for 3 hours, before the absorbance at 490 nm is measured. The experiments are conducted three times and mean and standard error of the mean is calculated with Excel.
Synonyms	IPA3, IPA 3

Chemical Properties

Molecular Weight	350.45
Formula	C₂₀H₁₄O₂S₂
Cas No.	42521-82-4
Smiles	Oc1ccc2ccccc2c1SSc1c(O)ccc2ccccc12
Relative Density.	1.46 g/cm3 (Predicted)

Storage & Solubility Information

Storage

In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature.

Solubility Information

H2O: < 1 mg/mL (insoluble or slightly soluble)

Ethanol: 7 mg/mL (19.97 mM), Sonication is recommended.

DMSO: 250 mg/mL (713.37 mM), Sonication is recommended.

In Vivo Formulation

10% DMSO+40% PEG300+5% Tween 80+45% Saline: 2 mg/mL (5.71 mM), Sonication is recommended.

Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions.

Solution Preparation Table

Ethanol/DMSO

	1mg	5mg	10mg	50mg
1 mM	2.8535 mL	14.2674 mL	28.5347 mL	142.6737 mL
5 mM	0.5707 mL	2.8535 mL	5.7069 mL	28.5347 mL
10 mM	0.2853 mL	1.4267 mL	2.8535 mL	14.2674 mL

DMSO

	1mg	5mg	10mg	50mg
20 mM	0.1427 mL	0.7134 mL	1.4267 mL	7.1337 mL
50 mM	0.0571 mL	0.2853 mL	0.5707 mL	2.8535 mL
100 mM	0.0285 mL	0.1427 mL	0.2853 mL	1.4267 mL

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In Vivo Formulation Calculator (Clear solution)

Please enter your animal experiment information in the following box and click Calculate to obtain the stock solution preparation method and in vivo formula preparation method:

For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, TargetMol | Animal experiments

and a total of 10 animals are to be administered, using a formulation of TargetMol | reagent

10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH₂O , the resulting working solution concentration would be 2 mg/mL.

Stock Solution Preparation:

Dissolve 2 mg of the compound in 100 μL DMSO TargetMol | reagent to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.

Preparation of the In Vivo Formulation:

1) Add 100 μL of the DMSO TargetMol | reagent stock solution to 400 μL PEG300 and mix thoroughly until the solution becomes clear.

2) Add 50 μL Tween 80 and mix well until fully clarified.

3) Add 450 μL Saline,PBS or ddH₂O TargetMol | reagent and mix thoroughly until a homogeneous solution is obtained.

This example is provided solely to demonstrate the use of the In Vivo Formulation Calculator and does not constitute a recommended formulation for any specific compound. Please select an appropriate dissolution and formulation strategy based on your experimental model and route of administration.

All co-solvents required for this protocol, includingDMSO, PEG300/PEG400, Tween 80, SBE-β-CD, and Corn oil, are available for purchase on the TargetMol website.

Dose Conversion

You can also refer to dose conversion for different animals. More Dose Conversion

Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc