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S8822

Sigma-Aldrich

SB-525334

≥98% (HPLC), solid, ALK5 inhibitor

Synonym(s):

6-[2-tert-Butyl-5-(6-methyl-pyridin-2-yl)-1H-imidazol-4-yl]-quinoxaline

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About This Item

Empirical Formula (Hill Notation):
C21H21N5
CAS Number:
356559-20-1
Molecular Weight:
343.42
MDL number:
MFCD11045307
UNSPSC Code:
12352200
PubChem Substance ID:
329824610
NACRES:
NA.77

product name

SB-525334, ≥98% (HPLC)

Assay

≥98% (HPLC)

form

solid

color

yellow

solubility

DMSO: ≥20 mg/mL

originator

GlaxoSmithKline

storage temp.

2-8°C

SMILES string

Cc1cccc(n1)-c2[nH]c(nc2-c3ccc4nccnc4c3)C(C)(C)C

InChI

1S/C21H21N5/c1-13-6-5-7-16(24-13)19-18(25-20(26-19)21(2,3)4)14-8-9-15-17(12-14)23-11-10-22-15/h5-12H,1-4H3,(H,25,26)

InChI key

DKPQHFZUICCZHF-UHFFFAOYSA-N

Application

SB-525334 was used to study TGFβ1-mediated human trophoblast differentiation.7

Biochem/physiol Actions

SB-525334 blocks the activation of Smad2/3 induced by TGFβ1 in renal proximal tubule cells.4 The sensitivity of TGFβ1 is decreased by SB-525334 that benefits the pulmonary arterial hypertension condition by reversing the pulmonary arterial pressure.5 SB-525334 is reduces the tumor incidence and size of mesenchymal tumors such as uterine leiomyoma.6
SB-525334 is a potent activin receptor-like kinase (ALK5)/ type I TGFβ-receptor kinase inhibitor with IC50 = 14.3 nM.

Features and Benefits

This compound was developed by GlaxoSmithKline. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Eugene T Grygielko et al.
The Journal of pharmacology and experimental therapeutics, 313(3), 943-951 (2005-03-17)
SB-525334 (6-[2-tert-butyl-5-(6-methyl-pyridin-2-yl)-1H-imidazol-4-yl]-quinoxaline) has been characterized as a potent and selective inhibitor of the transforming growth factor-beta1 (TGF-beta1) receptor, activin receptor-like kinase (ALK5). The compound inhibited ALK5 kinase activity with an IC(50) of 14.3 nM and was approximately 4-fold less potent
Hiroyuki Higashiyama et al.
Experimental and molecular pathology, 83(1), 39-46 (2007-02-06)
Activin receptor-like kinase 5 (ALK5) is a type I receptor of transforming growth factor (TGF)-beta. ALK5 inhibition has been reported to attenuate the tissue fibrosis including pulmonary fibrosis, renal fibrosis and liver fibrosis. To elucidate the inhibitory mechanism of ALK5
Nicholas J Laping et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 13(10), 3087-3099 (2007-05-17)
Transforming growth factor beta (TGF-beta), which generally stimulates the growth of mesenchymally derived cells but inhibits the growth of epithelial cells, has been proposed as a possible target for cancer therapy. However, concerns have been raised that whereas inhibition of
Neel I Nissen et al.
Cancers, 14(3) (2022-02-16)
The use of novel tools to understand tumour-fibrosis in pancreatic ductal adenocarcinoma (PDAC) and novel anti-fibrotic treatments are highly needed. We established a pseudo-3D in vitro model including humane pancreatic fibroblasts (PFs) and pancreatic cancer-associated fibroblasts (CAFs) in combination with
Lindsay R Piraino et al.
Cells, 11(12) (2022-06-25)
The development of therapies to prevent or treat salivary gland dysfunction has been limited by a lack of functional in vitro models. Specifically, critical markers of salivary gland secretory phenotype downregulate rapidly ex vivo. Here, we utilize a salivary gland
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