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
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() 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 |
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
| Supplier | Tel | 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 |






