Cat. No.: HY-112842

MBQ-167

12 Cited Publications

Customer Review

Based on 12 publication(s) in Google Scholar

MBQ-167 is a dual Rac/Cdc42 inhibitor, with IC₅₀s of 103 nM for Rac 1/2/3 and 78 nM for Cdc42 in MDA-MB-231 cells, respectively.

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

Purity: 99.85%
CAS No.: 2097938-73-1
Formula: C₂₂H₁₈N₄
Molecular Weight:338.41

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year

MBQ-167 Chemical Structure

CAS No.: 2097938-73-1

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Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- IC₅₀ & Target
- Cellular Effect
- In Vitro
- In Vivo
- Clinical Trial
Chemical Information
Publications (12)
Solvent & Solubility
- In Vitro
- In Vivo
Protocol
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

MBQ-167 is a dual Rac/Cdc42 inhibitor, with IC₅₀s of 103 nM for Rac 1/2/3 and 78 nM for Cdc42 in MDA-MB-231 cells, respectively.

IC₅₀ & Target

Cdc42

78 nM (IC₅₀)

Ras 1/2/3

103 nM (IC₅₀)

All Ras Isoforms :

All CDK Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
MDA-MB-231	GI₅₀	130 nM Compound: 6; MBQ-167	Antiproliferative activity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 120 hrs by MTT assay Antiproliferative activity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 120 hrs by MTT assay	[PMID: 36893627]

In Vitro

MBQ-167 (≥100 nM) induces a loss of polarity in metastatic breast cancer cells. Treatment with 500 nM MBQ-167 for 24 h results in ~95% cell rounding and detachment from the substratum in metastatic MDA-MB-231 cells. Moreover, MBQ-167 induces this phenotype in multiple mesenchymal cancer cell types including GFP-HER2-BM, MDA-MB-468, and Hs578t human breast cancer cells, as well as Mia-PaCa-2 pancreatic cancer cells, SKOV3 ovarian cancer cells, AGS and NCI-N87 gastric cancer cells, and SH-SY5Y neuroblastoma cells. Following treatment with 250 nM MBQ-167 for 24 h, the attached population of MDA-MB-231 cells demonstrate a ~25% decrease in Rac activation while the detached cells are more responsive with a ~75% decrease. At earlier times (6h), treatment with 250 or 500 nM MBQ-167, induce a inhibition in Rac activity in the attached cell population, while the detached population demonstrate a ~40-50% inhibition^[1].

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

In Vivo

MBQ-167-treated mice demonstrate a statistically significant reduction in tumor growth. At sacrifice, 1.0 mg/kg BW of MBQ-167 results in a ~80% reduction in tumor growth, and the 10 mg/kg BW MBQ-167 treatment results in ~95% reduction in tumor growth. Since EHop-016 only exerts ~40% reduction of tumor growth at 10 mg/kg BW, MBQ-167 is 10X more effective than EHop-016. MBQ-167 treated mice demonstrate similar doubling times for both treatments (10 and 11 days)^[1].

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

Clinical Trial

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Chemical Information

CAS No. 2097938-73-1
Appearance Solid
Molecular Weight 338.41
Formula C₂₂H₁₈N₄
Color Light yellow to yellow
SMILES

CCN1C2=C(C3=C1C=CC=C3)C=C(N4N=NC=C4C5=CC=CC=C5)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	2 years
	-20°C	1 year

Publications (12)

All Cell Proliferation/Viability Assay

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Journal Impact Factor

Nature

Collagenolysis-dependent DDR1 signalling dictates pancreatic cancer outcome. [Abstract]

2022 Oct;610(7931):366-372. PMID: 36198801
Cancer Discov

Systematic evaluation of GAPs and GEFs identifies a targetable dependency for hematopoietic malignancies. [Abstract]

2025 Aug 12. PMID: 40788260
Sci Adv

Kinesin-1 coordinates cross-talk between microtubule and actin cytoskeletons during dendritic cell migration. [Abstract]

2025 Oct 17;11(42):eadx7672. PMID: 41105759
Cell Death Dis

Humanin activates integrin αV-TGFβ axis and leads to glioblastoma progression. [Abstract]

2024 Jun 28;15(6):464. PMID: 38942749
Proc Natl Acad Sci U S A

Identification of nanoparticle infiltration in human breast milk: Chemical profiles and trajectory pathways. [Abstract]

2025 May 20;122(20):e2500552122. PMID: 40354532
Clin Transl Med

Uterus globulin associated protein 1 (UGRP1) binds podoplanin (PDPN) to promote a novel inflammation pathway during Streptococcus pneumoniae infection. [Abstract]

2022 Jun;12(6):e850. PMID: 35652821
J Cell Biol

CD47 inhibits phagocytosis through Vav dephosphorylation. [Abstract]

2025 Dec 1;224(12):e202502206. PMID: 41100219
JCI Insight

Loss of Dnmt3a impairs hematopoietic homeostasis and myeloid cell skewing via the PI3Kinase pathway. [Abstract]

2023 May 8;8(9):e163864. PMID: 36976647

MBQ-167 purchased from MedChemExpress. Usage Cited in: JCI Insight. 2023 May 8;8(9):e163864. [Abstract]

MBQ-167 (200 nM; 20 h) significantly reduces the migration of liver specific Dnmt3a^-/- hematopoietic cells.
Cell Signal

D-Ala2-GIP (1-30) promotes angiogenesis by facilitating endothelial cell migration via the Epac/Rap1/Cdc42 signaling pathway. [Abstract]

2025 Jan 22:111615. PMID: 39855534
University of California

2025.
bioRxiv

CD47 prevents Rac-mediated phagocytosis through Vav1 dephosphorylation. [Abstract]

2025 Feb 12:2025.02.11.637707. PMID: 39990418
Research Square Preprint

2023 Apr 13.

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (295.50 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.9550 mL

14.7750 mL

29.5500 mL

5 mM

0.5910 mL

2.9550 mL

5.9100 mL

10 mM

0.2955 mL

1.4775 mL

2.9550 mL

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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Molarity Calculator

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

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

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

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

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Volume _(final) Volume _(final)

In Vivo:

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

Stock Solution Working Solution

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 40% PEG300 5% Tween-80 45% Saline

Solubility: 2.5 mg/mL (7.39 mM); Suspended solution; Need ultrasonic

This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

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).

Working solution concentration: 0.22 mg/mL

Protocol

Animal Administration^[1]

Mice^[1]
Female athymic nu/nu mice, 4 to 5wk old are used. GFP-HER2-BM cells (~5×10⁵) in Matrigel are injected at the fourth right mammary fat pad under isofluorane inhalation to produce orthotopic primary tumors. After tumor establishment (1wk post-inoculation), animals are randomly divided into treatment groups (n=6). Mice are treated with vehicle (12.5% ethanol, 12.5% Cremophor, and 75% 1X PBS pH 7.4), or 1 or 10 mg/kg BW MBQ-167 by i.p. injection in a 100 μL volume 3X a wk. Treatments continue until sacrifice at day 65^[1].

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

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (284 KB)
SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Humphries-Bickley T, et al. Characterization of a Dual Rac/Cdc42 Inhibitor MBQ-167 in Metastatic Cancer. Mol Cancer Ther. 2017 May;16(5):805-818. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.9550 mL	14.7750 mL	29.5500 mL	73.8749 mL
	5 mM	0.5910 mL	2.9550 mL	5.9100 mL	14.7750 mL
	10 mM	0.2955 mL	1.4775 mL	2.9550 mL	7.3875 mL
	15 mM	0.1970 mL	0.9850 mL	1.9700 mL	4.9250 mL
	20 mM	0.1477 mL	0.7387 mL	1.4775 mL	3.6937 mL
	25 mM	0.1182 mL	0.5910 mL	1.1820 mL	2.9550 mL
	30 mM	0.0985 mL	0.4925 mL	0.9850 mL	2.4625 mL
	40 mM	0.0739 mL	0.3694 mL	0.7387 mL	1.8469 mL
	50 mM	0.0591 mL	0.2955 mL	0.5910 mL	1.4775 mL
	60 mM	0.0492 mL	0.2462 mL	0.4925 mL	1.2312 mL
	80 mM	0.0369 mL	0.1847 mL	0.3694 mL	0.9234 mL
	100 mM	0.0295 mL	0.1477 mL	0.2955 mL	0.7387 mL

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MBQ-167

Cell Cycle/DNA Damage Compound Library

GPCR/G Protein Compound Library

Immunology/Inflammation Compound Library

Kinase Inhibitor Library

MAPK Compound Library

Anti-Cancer Compound Library

Clinical Compound Library

Anti-Aging Compound Library

Oxygen Sensing Compound Library

Ferroptosis Compound Library

Glutamine Metabolism Compound Library

Anti-Breast Cancer Compound Library

Anti-Pancreatic Cancer Compound Library

Anti-Blood Cancer Compound Library

Angiogenesis-Related Compound Library

Anti-Liver Cancer Compound Library

Anti-Colorectal Cancer Compound Library

Cancer Stem Cells Compound Library

Membrane Protein-targeted Compound Library

Membrane Receptor-targeted Compound Library

Highly Selective Inhibitors Library

Serine/Threonine Kinase Inhibitor Library

Anti-Hematopathy Compound Library

Anti-Ovarian Cancer Compound Library

Multi-Target Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Clinical Compound Library Plus

Bioactive Compound Library

Protein Kinase Compound Library

Cell Proliferation Compound Library

High-Throughput Bioactive Compound Library

Posttranslational Modification Library

High-Efficiency Gene Editing Compound Library

Lactylation Compound Library

Publications Citing Use of MedChemExpress (MCE) MBQ-167

All Ras Isoforms

All CDK Isoforms

Biological Activity

Chemical Information

Publications (12)

Solvent & Solubility

Protocol

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

MBQ-167 Related Classifications

Cat. No.: HY-112842