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KO-947

CAS No.
1695533-89-1
Chemical Name:
KO-947
Synonyms
KO-947;KO-947 ,S8569;KO947;KO-947;KO 947;6-benzyl-3-(pyridin-4-yl)-1H,5H,6H,7H,8H-pyrazolo[4,3-g]quinazolin-7-one;6-benzyl-3-(pyridin-4-yl)-5,6-dihydro-1H-pyrazolo[4,3-g]quinazolin-7(8H)-one;Inhibitor,ERK,KO-947,inhibit,KO 947,Extracellular signal regulated kinases,KO947;7H-Pyrazolo[4,3-g]quinazolin-7-one, 1,5,6,8-tetrahydro-6-(phenylmethyl)-3-(4-pyridinyl)-
CBNumber:
CB63168747
Molecular Formula:
C21H17N5O
Molecular Weight:
355.39
MDL Number:
MFCD31657422
MOL File:
1695533-89-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-27 17:00:41

KO-947 Properties

Boiling point 704.1±60.0 °C(Predicted)
Density 1.354±0.06 g/cm3(Predicted)
storage temp. 4°C, protect from light
solubility DMSO:66.75(Max Conc. mg/mL);187.82(Max Conc. mM)
form A crystalline solid
pka 13.32±0.20(Predicted)
color White to off-white

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352-P305+P351+P338

KO-947 price More Price(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Cayman Chemical 29213 KO947 ≥98% 1695533-89-1 1mg $36 2026-04-30 Buy
Cayman Chemical 29213 KO947 ≥98% 1695533-89-1 5mg $153 2026-04-30 Buy
Cayman Chemical 29213 KO947 ≥98% 1695533-89-1 10mg $268 2026-04-30 Buy
Cayman Chemical 29213 KO947 ≥98% 1695533-89-1 25mg $587 2026-04-30 Buy
ChemScene CS-0043627 KO-947 99.68% 1695533-89-1 5mg $140 2026-06-04 Buy
Product number Packaging Price Buy
29213 1mg $36 Buy
29213 5mg $153 Buy
29213 10mg $268 Buy
29213 25mg $587 Buy
CS-0043627 5mg $140 Buy

KO-947 Chemical Properties, Uses, Production

Description

KO947 is an ERK inhibitor (IC50 = <50 nM for ERK2). It is greater than 50-fold selective for ERK over a panel of 450 kinases. KO947 reduces phosphorylation of the ERK target p90 ribosomal S6 kinase (RSK) in A375 cancer cells containing constitutively active B-RAFV600E with an IC50 value of less than 250 nM. It inhibits proliferation of A375 cells, as well as mutant K-Ras-expressing HCT116 and H358 cancer cell lines (IC50s = 50-250 nM for all).

Uses

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

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].

IC 50

ERK1; ERK2

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.

KO-947 Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 75)
Supplier Tel Email Country ProdList Advantage
Shanghai Boyle Chemical Co., Ltd. sales@boylechem.com China 2915 55
BOC Sciences 1-631-485-4226; 16314854226 info@bocsci.com United States 9920 65
Nanjing Norris-Pharm Technology Co., Ltd 13901585132 sales@norris-pharm.com China 8869 55
HangZhou YuHao Chemical Technology Co., Ltd. 0571-82693216 info@yuhaochemical.com China 1999 58
Shanghai Lollane Biological Technology Co.,Ltd. 021-52996696,15000506266 15000506266 China 4859 55
YouCoChem (Beijing) Chemical Technology Co., Ltd. 18800159827 youcochem@163.com China 163 50
Shanghaizehan biopharma technology co., Ltd. 021-61350663 13052117465 sales@zehanbiopharma.com China 989 55
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
ShangHai Biochempartner Co.,Ltd 177-54423994 17754423994 2853530910@QQ.com China 8000 62
Shanghai Rechem science Co., Ltd. 021-31433387 15618786686 sales@rechemscience.com China 2969 58

View Latest Price from KO-947 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
KO-947 pictures 2026-07-27 KO-947
1695533-89-1
$44.00-168.00 97.84% 10g TargetMol Chemicals Inc.
  • KO-947 pictures
  • KO-947
    1695533-89-1
  • $44.00-168.00
  • 97.84%
  • TargetMol Chemicals Inc.

KO-947 Spectrum

KO-947 6-benzyl-3-(pyridin-4-yl)-5,6-dihydro-1H-pyrazolo[4,3-g]quinazolin-7(8H)-one KO947;KO-947;KO 947 7H-Pyrazolo[4,3-g]quinazolin-7-one, 1,5,6,8-tetrahydro-6-(phenylmethyl)-3-(4-pyridinyl)- Inhibitor,ERK,KO-947,inhibit,KO 947,Extracellular signal regulated kinases,KO947 6-benzyl-3-(pyridin-4-yl)-1H,5H,6H,7H,8H-pyrazolo[4,3-g]quinazolin-7-one KO-947 ,S8569 1695533-89-1