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Ki8751

CAS No.
228559-41-9
Chemical Name:
Ki8751
Synonyms
Ki8751;CS-532;Ki8751, >=98%;Ki8751 hydrate;KI 8751; KI-8751;Ki8751 USP/EP/BP;KI8751, 10 mM in DMSO;KI8751;KI 8751;KI-8751;VEGFR2 Kinase Inhibitor VI, Ki8751;VEGFR2 Kinase Inhibitor VI Ki8751 Ki-8751
CBNumber:
CB71074331
Molecular Formula:
C24H18F3N3O4
Molecular Weight:
469.41
MDL Number:
MFCD09971092
MOL File:
228559-41-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-27 17:00:41

Ki8751 Properties

Melting point 239℃
Density 1.429
storage temp. −20°C
solubility Soluble in DMSO (15 mg/ml)
form Off-white solid
color White
Stability Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
InChI 1S/C24H18F3N3O4/c1-32-22-11-15-20(12-23(22)33-2)28-8-7-21(15)34-14-4-6-19(17(27)10-14)30-24(31)29-18-5-3-13(25)9-16(18)26/h3-12H,1-2H3,(H2,29,30,31)
InChIKey LFKQSJNCVRGFCC-UHFFFAOYSA-N
SMILES Fc1c(ccc(c1)F)NC(=O)Nc2c(cc(cc2)Oc3c4c(ncc3)cc(c(c4)OC)OC)F
FDA UNII RP6UGT29FF
UNSPSC Code 12352200
NACRES NA.77

SAFETY

Risk and Safety Statements

Hazard Codes  Xn
Risk Statements  22-38
Safety Statements  37
WGK Germany  WGK 1
Storage Class 11 - Combustible Solids

Ki8751 price More Price(54)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 676484 VEGFR2 Kinase Inhibitor VI, Ki8751 228559-41-9 5mg $284 2026-04-30 Buy
Cayman Chemical 18004 Ki8751 ≥98% 228559-41-9 5mg $68 2026-04-30 Buy
Cayman Chemical 18004 Ki8751 ≥98% 228559-41-9 10mg $124 2026-04-30 Buy
Cayman Chemical 18004 Ki8751 ≥98% 228559-41-9 25mg $258 2026-04-30 Buy
Cayman Chemical 18004 Ki8751 ≥98% 228559-41-9 50mg $481 2026-04-30 Buy
Product number Packaging Price Buy
676484 5mg $284 Buy
18004 5mg $68 Buy
18004 10mg $124 Buy
18004 25mg $258 Buy
18004 50mg $481 Buy

Ki8751 Chemical Properties, Uses, Production

Description

Ki8751 (228559-41-9) is a very potent (IC50 = 0.9 nM) inhibitor of vascular endothelial growth factor receptor 2 (VEGFR-2).1 It also inhibited PDGFRα (IC50 = 67 nM), c-Kit (IC50 = 40 nM), and FGFR2 (IC50 = 170 nM). Ki8751 completely suppressed HUVEC growth at 1 nM. Ki8751 completely inhibited tumor growth in LC-6 human tumor xenografts @ 5mg/kg. Ki8751 displayed anti-influenza A and B activity via disruption of virus entry in a PDGFR/GM3-dependent manner.2

Uses

KI 8751 is a potent and selective inhibitor of VEGFR-2-tyrosine kinase which inhibits proliferation of human umbilical vein endothelial cells and inhibits tumor growth.

Uses

Ki8751 is a potent and selective inhibitor of VEGFR2, PDGFRα and c-Kit with IC50 of 0.9 nM, 67 nM and 40 nM, respectively.

Definition

ChEBI: 1-(2,4-difluorophenyl)-3-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]urea is an aromatic ether.

General Description

A cell-permeable quinolyloxyphenyl-urea compound that acts as a VEGFR-2-selective inhibitior in both cell-based (IC50 = 0.9 nM in VEGF-induced receptor phosphorylation) and cell-free (IC50 = 4.0 nM in kinase reactions) assays. It inhibits c-Kit, PDGFRα, and FGFR-2 only at much higher concentrations (IC50 = 40, 67, and 170 nM, respectively, in cell-based assays), while exhibiting no effect against eight other commonly studied receptor and non-receptor kinases even at concentrations as high as 10 μM. Effectively blocks VEGF-dependent, but not VEGF-independent, cell proliferation in vitro and tumor growth in mice and rats (5 to 20 mg/kg, daily p.o.) in vivo.

Biological Activity

Potent, selective inhibitor of VEGFR-2 tyrosine kinase (IC 50 = 0.9 nM). Displays some inhibitory activity towards c-Kit, PDGFR α and FGFR-2 (IC 50 values range from 40 to 170 nM) but is highly selective over other receptor tyrosine kinases (IC 50 > 10000 nM for FGFR-2, EGFR and HGFR). Inhibits VEGF-stimulated proliferation of human umbilical vein endothelial cells (HUVEC) and inhibits tumor growth in vivo ; antiangiogenic.

storage

Store at +4°C

References

[1] KAZUO KUBO. Novel Potent Orally Active Selective VEGFR-2 Tyrosine Kinase Inhibitors: Synthesis, Structure−Activity Relationships, and Antitumor Activities of N-Phenyl-N‘-{4-(4-quinolyloxy)phenyl}ureas[J]. Journal of Medicinal Chemistry, 2005, 48 5: 1359-1366. DOI:10.1021/jm030427r
[2] PIETER VRIJENS. Influenza virus entry via the GM3 ganglioside-mediated platelet-derived growth factor receptor β signalling pathway.[J]. The Journal of general virology, 2019: 583-601. DOI:10.1099/jgv.0.001235

Ki8751 Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 159)
Supplier Tel Email Country ProdList Advantage
Shanghai Boyle Chemical Co., Ltd. sales@boylechem.com China 2915 55
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Chembest Research Laboratories Limited 021-20908456 sales@BioChemBest.com China 5996 61
Jinan Trio PharmaTech Co., Ltd. 0531-88811783 sales@trio-pharmatech.com China 1856 62
BOC Sciences 1-631-485-4226; 16314854226 info@bocsci.com United States 9920 65
Dalian Meilun Biotech Co., Ltd. 0411-62910999 13889544652 sales@meilune.com China 4765 58
NCE Biomedical Co.,Ltd. 4000-027-021 |24 +86-13986109188 | +86-15623472865 | +81-08033611988 China 1490 55
Haoyuan Chemexpress Co., Ltd. 021-58950125 info@chemexpress.com China 7545 61
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29975 65
SHANGHAI FORTUNE CHEMICAL TECHNOLOGY CO., LTD 13816107857 sales@fortunechem-sh.com China 981 58

View Latest Price from Ki8751 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
KI8751 pictures 2026-07-27 KI8751
228559-41-9
$31.00-78.00 99.73% 10g TargetMol Chemicals Inc.
Ki8751 pictures 2026-06-30 Ki8751
228559-41-9
1KG 98% 1000kg Shaanxi Dideu New Materials Co. Ltd
	Ki8751 pictures 2019-09-02 Ki8751
228559-41-9
$7.00 1KG 99% Career Henan Chemical Co
  • KI8751 pictures
  • KI8751
    228559-41-9
  • $31.00-78.00
  • 99.73%
  • TargetMol Chemicals Inc.
  • Ki8751 pictures
  • Ki8751
    228559-41-9
  • $0.00
  • 98%
  • Shaanxi Dideu New Materials Co. Ltd
  • 	Ki8751 pictures
  • Ki8751
    228559-41-9
  • $7.00
  • 99%
  • Career Henan Chemical Co
Ki8751 hydrate Ki8751, >=98% KI8751;KI 8751;KI-8751 VEGFR2 Kinase Inhibitor VI, Ki8751 Ki8751 1-(2,4-Difluoro-phenyl)-3-[4-(6,7-dimethoxy-quinolin-4-yloxy)-2-fluoro-phenyl]-urea hydrate N-(2,4-Difluorophenyl)-N'-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]urea 1-(2,4-difluorophenyl)-3-(4-(6,7-diMethoxyquinolin-4-yloxy)-2-fluorophenyl)urea N-(2,4-Difluorophenyl)-N'-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]urea KI8751 VEGFR2 Kinase Inhibitor VI, Ki8751 - CAS 228559-41-9 - Calbiochem KI 8751; KI-8751 CS-532 Urea, N-(2,4-difluorophenyl)-N'-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]- Ki8751 USP/EP/BP VEGFR2 Kinase Inhibitor VI Ki8751 Ki-8751 KI8751, 10 mM in DMSO 228559-41-9 28559-41-9 C24H18F3N3O4 Inhibitors