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616453

Sigma-Aldrich

TGF-β RI Kinase Inhibitor III

The TGF-β RI Kinase Inhibitor III, also referenced under CAS 356559-13-2, controls the biological activity of TGF-β RI Kinase. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

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Synonym(s):
TGF-β RI Kinase Inhibitor III, Transforming Growth Factor-β Type I Receptor Kinase Inhibitor III, 2-(5-Benzo[1,3]dioxol-4-yl-2-tert-butyl-1H-imidazol-4-yl)-6-methylpyridine, HCl, ALK5 Inhibitor III, SB-505124, HCl
Empirical Formula (Hill Notation):
C20H21N3O2 · xHCl
CAS Number:
356559-13-2
Molecular Weight:
335.40 (free base basis)
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

100

Assay

≥97% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)
protect from light

color

light yellow

solubility

DMSO: 20 mg/mL
water: 3 mg/mL

shipped in

ambient

storage temp.

2-8°C

InChI

1S/C20H21N3O2.ClH/c1-12-6-5-7-14(21-12)18-17(22-19(23-18)20(2,3)4)13-8-9-15-16(10-13)25-11-24-15;/h5-10H,11H2,1-4H3,(H,22,23);1H

InChI key

BTUOOXPZOVNPMF-UHFFFAOYSA-N

General description

A cell-permeable imidazolyl-pyridine compound that acts as a potent, ATP-competitive, reversible, and selective inhibitor of activin receptor-like kinase 4 (IC50 = 129 nM), 5 ( IC50 = 47 nM), and 7. It inhibits p38 MAPKα only at much higher concentrations (IC50 = 10.6 µM) and has little effect against ALK1/2/3/6 as well as a panel of 26 other kinases.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
Activin receptor-like kinase 4, 5, 7
Product competes with ATP.
Reversible: yes
Target IC50: 129 nM, 47 nM, against activin receptor-like kinase 4, 5, respectively

Packaging

Packaged under inert gas

Warning

Toxicity: Irritant (B)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Other Notes

Hu, T., et al. 2005. Am. J. Physiol. Renal Physiol.289, F816.
DaCosta Byfield, S., et al. 2004. Mol. Pharmacol.65, 744.

Legal Information

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

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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