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420119

Sigma-Aldrich

JNK Inhibitor II

JNK Inhibitor II. SP600125, CAS 129-56-6, is a potent, cell-permeable, selective, and ATP competitive inhibitor of c-Jun N-terminal kinase (JNK; IC₅₀ = 40 nM for JNK-1 & JNK-2 & 90 nM for JNK-3).

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Synonym(s):
JNK Inhibitor II, SAPK Inhibitor II, Anthra[1,9- cd]pyrazol-6(2 H)-one, 1,9-pyrazoloanthrone, SP600125
Empirical Formula (Hill Notation):
C14H8N2O
CAS Number:
Molecular Weight:
220.23

Quality Level

assay

≥98% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

yellow-orange

solubility

DMSO: 15 mg/mL

shipped in

ambient

storage temp.

−20°C

InChI

1S/C14H8N2O/c17-14-9-5-2-1-4-8(9)13-12-10(14)6-3-7-11(12)15-16-13/h1-7H,(H,15,16)

InChI key

ACPOUJIDANTYHO-UHFFFAOYSA-N

General description

A potent, cell-permeable, selective, and reversible inhibitor of c-Jun N-terminal kinase (JNK) (IC50 = 40 nM for JNK-1 and JNK-2 and 90 nM for JNK-3). The inhibition is competitive with respect to ATP. Exhibits over 300-fold greater selectivity for JNK as compared to ERK1 and p38-2 MAP kinases. Inhibits the phosphorylation of c-Jun and blocks cellular expression of IL-2, IFN-γ, TNF-α, and COX-2. Blocks IL-1-induced accumulation of phospho-Jun and induction of c-Jun transcription. A 50 mM (5 mg/454 µl) solution of JNK Inhibitor II (Cat. No. 420128) in DMSO is also available.
A potent, cell-permeable, selective, and reversible inhibitor of c-Jun N-terminal kinase (JNK) (IC50 = 40 nM for JNK-1 and JNK-2 and 90 nM for JNK-3). The inhibition is competitive with respect to ATP. Exhibits over 300-fold greater selectivity for JNK as compared to ERK1 and p38-2 MAP kinases. Inhibits the phosphorylation of c-Jun and blocks the expression of IL-2, IFN-γ, TNF-α, and COX-2 in cells. Blocks IL-1-induced accumulation of phospho-Jun and induction of c-Jun transcription.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
JNK 1, JNK 2, JNK 3
Product competes with ATP.
Reversible: yes
Target IC50: 40 nM for JNK-1 and JNK-2 and 90 nM for JNK-3

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Preparation Note

For every 10 µM concentration of JNK Inhibitor II, include 0.1% DMSO in the culture medium. Pre-warming of culture medium and addition of BSA to the medium may enhance its solubility.

Reconstitution

Following reconstitution, aliquot and freeze at -20°C. Stock solutions are stable for up to 2 months at -20°C.

Legal Information

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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