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Merck

SML1046

CHIR99021

≥98% (HPLC), powder, GSK-3 inhibitor

Synonym(s):

6-[[2-[[4-(2,4-Dichlorophenyl)-5-(5-methyl-1H-imidazol-2-yl)-2-pyrimidinyl]amino]ethyl]amino]-3-pyridinecarbonitrile, CT99021

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About This Item

Empirical Formula (Hill Notation):
C22H18Cl2N8
CAS Number:
252917-06-9
Molecular Weight:
465.34
UNSPSC Code:
12352200
PubChem Substance ID:
329825639
NACRES:
NA.77
MDL number:
MFCD11846251

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Product Name

CHIR99021, ≥98% (HPLC)

SMILES string

ClC(C=C1Cl)=CC=C1C2=NC(NCCNC(N=C3)=CC=C3C#N)=NC=C2C4=NC(C)=CN4

InChI

1S/C22H18Cl2N8/c1-13-10-29-21(31-13)17-12-30-22(32-20(17)16-4-3-15(23)8-18(16)24)27-7-6-26-19-5-2-14(9-25)11-28-19/h2-5,8,10-12H,6-7H2,1H3,(H,26,28)(H,29,31)(H,27,30,32)

InChI key

AQGNHMOJWBZFQQ-UHFFFAOYSA-N

assay

≥98% (HPLC)

form

powder

color

white to light brown

solubility

DMSO: 2 mg/mL, clear (warmed)

storage temp.

−20°C

Quality Level

100

Application

CHIR99021 has been used as a Wnt signaling agonist to study its effects on the differentiation of human pluripotent stem cell-derived cardiomyocytes (hPSCs).
CHIR99021 has been used:
  • in cocktail with small molecules to convert human lung fibroblast cells into neurons
  • as a culture medium supplement in potassium supplemented simplex optimization medium (KSOM) for the culture of blastocysts
  • for chronic inhibition of GSK-3 to investigate its role in corticogenesis

Biochem/physiol Actions

CHIR99021 is a very potent inhibitor of Glycogen synthase kinase 3 (GSK3, IC50 values for GSK3α and GSK3β = 10 and 6.7 nM, respectively). There is no cross-reactivity against CDKs. CHIR99201 potentiates self-renewal of human and mouse embryonic stem cells, and enhances reprogramming of somatic cells into stem cells.
CHIR99021 is a very potent inhibitor of Glycogen synthase kinase 3.

General description

CHIR99021 is an aminopyrimidine derivative. CHIR99021 promotes self-renewal potential of embryonic stem cells (ESCs) of mice by inhibiting glycogen synthase kinase-3 (GSK-3) activity and potentiates the upregulation of β-catenin and c-Myc functions. CHIR99021 promotes self-renewal of ESCs by modulating transforming growth factor β (TGF-β), Notch and mitogen-activated protein kinases (MAPK) signaling pathways. CHIR99021 is an agonist of wingless/integrated (wnt) signalling, upregulates cyclinA expression and promotes cell proliferation in non-small-cell lung cancer (NSCLC) cell lines.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

No data available

flash_point_c

No data available

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Certificates of Analysis (COA)

Lot/Batch Number
037M4719V
017M4717V
046M4723V
105M4715V
065M4727V

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CHIR99021 promotes self-renewal of mouse embryonic stem cells by modulation of protein-encoding gene and long intergenic non-coding RNA expression
Wu Y, et al.
Experimental Cell Research, 319(17), 2684-2699 (2013)
Co-incident insertion enables high efficiency genome engineering in mouse embryonic stem cells
Shy BR
Nucleic Acids Research, 44, 7997-8010 (2016)
Generation of Urine Cell-Derived Non-integrative Human iPSCs and iNSCs: A Step-by-Step Optimized Protocol
Cheng L
Frontiers in Molecular Neuroscience (2017)
Molecular Diversity of Midbrain Development in Mouse, Human, and Stem Cells
La Manno G
Cell, 167, 566-580 (2016)
Developmental Xist induction is mediated by enhanced splicing
Stork C, et al.
Nucleic Acids Research (2018)
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