Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

616454

Sigma-Aldrich

A 83-01

≥97% (HPLC), solid, TGF-β RI kinase inhibitor, Calbiochem

Synonym(s):

TGF-β RI Kinase Inhibitor IV, Transforming Growth Factor-β Type I Receptor Kinase Inhibitor IV, 3-(6-Methylpyridin-2-yl)-4-(4-quinolyl)-1-phenylthiocarbamoyl-1H-pyrazole, A-83-01, ALK5 Inhibitor IV

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C25H19N5S
CAS Number:
Molecular Weight:
421.52
UNSPSC Code:
12352200
NACRES:
NA.54

product name

TGF-β RI Kinase Inhibitor IV, TGF-β RI Kinase Inhibitor IV, CAS 909910-43-6, is a cell-permeable, selective inhibitor of ALK-4/5/7-mediated signaling (IC₅₀ = 45, 12, and 7.5 nM, respectively).

Quality Level

Assay

≥97% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

pale yellow

solubility

DMSO: 20 mg/mL

shipped in

ambient

storage temp.

2-8°C

InChI

1S/C25H19N5S/c1-17-8-7-13-23(27-17)24-21(19-14-15-26-22-12-6-5-11-20(19)22)16-30(29-24)25(31)28-18-9-3-2-4-10-18/h2-16H,1H3,(H,28,31)

InChI key

HIJMSZGHKQPPJS-UHFFFAOYSA-N

General description

A cell-permeable trisubstituted pyrazole compound that has been shown to selectively inhibit ALK-4/5/7-mediated (IC50 = 45, 12, and 7.5 nM, respectively, in luciferase transcription activity assays), but not ALK-1/2/3/6-mediated cellular signaling in Mv1Lu R4-2 transfectants expressing the individual Type I TGF-β receptors. Inhibits TGF-β-induced Smad2-phosphorylation in HaCaT cells and epithelial-to-mesenchymal transition in NMuMG cells at a concentration of 1 µM.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
ALK-4/5/7
Product does not compete with ATP.
Reversible: no
Target IC50: 45, 12, and 7.5 nM, respectively, in inhibit ALK-4/5/7-mediated luciferase transcription activity assays

Packaging

Packaged under inert gas

Warning

Toxicity: Harmful (C)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Tojo, M., et al. 2005. Cancer Sci.96, 791.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3


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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Felix Kretzschmar et al.
Biology, 10(12) (2021-12-25)
As resident innate immune cells of the CNS, microglia play important essential roles during physiological and pathological situations. Recent reports have described the expression of Lilrb4 in disease-associated and aged microglia. Here, we characterized the expression of Lilrb4 in microglia
Fabian Trillsch et al.
STAR protocols, 4(3), 102484-102484 (2023-08-16)
We present a protocol for effective biobanking of epithelial ovarian cancer organoids, considering the heterogeneous clinical presentation and high recurrence rates. Our protocol involves parallel testing of three media to identify patient-specific optimal conditions. We describe steps for tissue dissociation
Naveen Kumar et al.
Nature communications, 15(1), 3064-3064 (2024-04-10)
The gastroesophageal squamocolumnar junction (GE-SCJ) is a critical tissue interface between the esophagus and stomach, with significant relevance in the pathophysiology of gastrointestinal diseases. Despite this, the molecular mechanisms underlying GE-SCJ development remain unclear. Using single-cell transcriptomics, organoids, and spatial
Erin R Spiller et al.
Frontiers in oncology, 11, 771173-771173 (2022-01-08)
Three-quarters of compounds that enter clinical trials fail to make it to market due to safety or efficacy concerns. This statistic strongly suggests a need for better screening methods that result in improved translatability of compounds during the preclinical testing
Alexander von Ehr et al.
Frontiers in cellular neuroscience, 14, 66-66 (2020-04-17)
Microglia are constantly surveying their microenvironment and rapidly react to impairments by changing their morphology, migrating toward stimuli and adopting gene expression profiles characterizing their activated state. The increased expression of the M2-like marker Mannose receptor 1 (Mrc1), which is

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service