Cat. No.: HY-112181

KO-947

4 Cited Publications

Customer Review

Based on 4 publication(s) in Google Scholar

KO-947 is a potent and selective inhibitor of ERK1/2 kinases with potential utility in MAPK pathway dysregulated tumors.

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

Purity: 99.68%
CAS No.: 1695533-89-1
Formula: C₂₁H₁₇N₅O
Molecular Weight:355.39

Storage:

4°C, protect from light

* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

KO-947 Chemical Structure

CAS No.: 1695533-89-1

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Use of MCE Products

Fluorescent Dye

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

Biological Activity
- Description
- IC₅₀ & Target
- In Vitro
- In Vivo
- Clinical Trial
Chemical Information
Publications (4)
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Bioz

Biological Activity

Description

KO-947 is a potent and selective inhibitor of ERK1/2 kinases with potential utility in MAPK pathway dysregulated tumors.

IC₅₀ & Target^[1]

ERK1

ERK2

All ERK Isoforms :

In Vitro

KO-947 is a 10 nM inhibitor of ERK with at least 50-fold selectivity against a panel of 450 kinases. KO-947 blocks ERK signaling and proliferation of tumor cells exhibiting dysregulation of MAPK pathway signaling, including mutations in BRAF, NRAS or KRAS, at low nanomolar concentrations^[1].

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

In Vivo

In cell-line derived xenograft studies, KO-947 profoundly suppresses ERK signaling for up to five days after a single dose and induces regressions in RAS- and RAF-mutant melanoma, NSCLC and pancreatic cancer models on administration schedules ranging from daily to weekly. Intermittent dosing enables comparable antitumor activity at reduced dose-intensity^[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. 1695533-89-1
Appearance Solid
Molecular Weight 355.39
Formula C₂₁H₁₇N₅O
Color White to off-white
SMILES

O=C1NC2=CC(NN=C3C4=CC=NC=C4)=C3C=C2CN1CC5=CC=CC=C5
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Publications (4)

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Sci Data

High-throughput drug screening identifies novel therapeutics for Low Grade Serous Ovarian Carcinoma. [Abstract]

2024 Sep 19;11(1):1024. PMID: 39300112
Pediatr Res

Potential therapeutic target of EGF on bile duct ligation model and biliary atresia children. [Abstract]

2023 Oct;94(4):1297-1307. PMID: 37138025

KO-947 purchased from MedChemExpress. Usage Cited in: Pediatr Res. 2023 Oct;94(4):1297-1307. [Abstract]

KO-947 (5 mM) inhibits the EGF-induced increased expression of N-cadherin and decreased expression of E-cadherin in HIBEpic cells.

KO-947 purchased from MedChemExpress. Usage Cited in: Pediatr Res. 2023 Oct;94(4):1297-1307. [Abstract]

KO-947 (5 mM) inhibits the EGF-induced downregulated expression of CK19 and upregulated expression of N-cadherin in HIBEpic cells.
Cancer Manag Res

Inhibition of Bone Morphogenetic Protein 2 Suppresses the Stemness Maintenance of Cancer Stem Cells in Hepatocellular Carcinoma via the MAPK/ERK Pathway. [Abstract]

2021 Jan 27:13:773-785. PMID: 33536785
Acta Histochem

Study of platelet-rich fibrin promoting endothelial cell differentiation and angiogenesis induced by transplantation of adipose-derived stem cells. [Abstract]

2023 Jun 15;125(6):152059. PMID: 37329849

Solvent & Solubility

In Vitro:

DMSO : 62.5 mg/mL (175.86 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

2.8138 mL

14.0691 mL

28.1381 mL

5 mM

0.5628 mL

2.8138 mL

5.6276 mL

10 mM

0.2814 mL

1.4069 mL

2.8138 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, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator

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

Mass

Concentration

Volume

Molecular Weight

Dilution Calculator

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

Concentration _(start)

Volume _(start)

Concentration _(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: ≥ 2.08 mg/mL (5.85 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.

Protocol 2

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

Solubility: ≥ 2.08 mg/mL (5.85 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

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

Solubility: ≥ 2.08 mg/mL (5.85 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 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 (20.8 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.

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

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (277 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)
- 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]. Burrows F, et al. KO-947, a potent ERK inhibitor with robust preclinical single agent activity in MAPK pathway dysregulated tumors [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 5168. doi:10.1158/1538-7445.AM2017-5168.

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

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.8138 mL	14.0691 mL	28.1381 mL	70.3453 mL
	5 mM	0.5628 mL	2.8138 mL	5.6276 mL	14.0691 mL
	10 mM	0.2814 mL	1.4069 mL	2.8138 mL	7.0345 mL
	15 mM	0.1876 mL	0.9379 mL	1.8759 mL	4.6897 mL
	20 mM	0.1407 mL	0.7035 mL	1.4069 mL	3.5173 mL
	25 mM	0.1126 mL	0.5628 mL	1.1255 mL	2.8138 mL
	30 mM	0.0938 mL	0.4690 mL	0.9379 mL	2.3448 mL
	40 mM	0.0703 mL	0.3517 mL	0.7035 mL	1.7586 mL
	50 mM	0.0563 mL	0.2814 mL	0.5628 mL	1.4069 mL
	60 mM	0.0469 mL	0.2345 mL	0.4690 mL	1.1724 mL
	80 mM	0.0352 mL	0.1759 mL	0.3517 mL	0.8793 mL
	100 mM	0.0281 mL	0.1407 mL	0.2814 mL	0.7035 mL

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KO-947

Immunology/Inflammation Compound Library

Kinase Inhibitor Library

MAPK Compound Library

Stem Cell Signaling Compound Library

Anti-Cancer Compound Library

Clinical Compound Library

Anti-Aging Compound Library

Reprogramming Compound Library

Oxygen Sensing Compound Library

Glutamine Metabolism Compound Library

Anti-Lung Cancer Compound Library

Anti-Pancreatic Cancer Compound Library

Anti-Obesity Compound Library

Angiogenesis-Related Compound Library

Targeted Diversity Library

Anti-Liver Cancer Compound Library

Anti-Colorectal Cancer Compound Library

Anti-Prostate Cancer Compound Library

Anti-Pulmonary Fibrosis Compound Library

Cancer Stem Cells Compound Library

Heterocyclic Compound Library

Pain-Related Compound Library

Highly Selective Inhibitors Library

Serine/Threonine Kinase Inhibitor 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

Lactylation Compound Library

Publications Citing Use of MedChemExpress (MCE) KO-947

All ERK Isoforms

Biological Activity

Chemical Information

Publications (4)

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

KO-947 Related Classifications

Cat. No.: HY-112181