444937

MEK Inhibitor I

The MEK Inhibitor I, also referenced under CAS 297744-42-4, controls the biological activity of MEK. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

• Synonym(s): MEK Inhibitor I
• Empirical Formula (Hill Notation): C₂₁H₁₈N₄OS
• CAS Number: 297744-42-4
• Molecular Weight: 374.46
• MDL number: MFCD00048369
• NACRES: NA.77
• UNSPSC Code: 12352200
• Assay: ≥95% (sum of two isomers, HPLC)
• Form: solid
• Storage condition: OK to freeze, protect from light

Properties

• Quality Segment: 100
• assay: ≥95% (sum of two isomers, HPLC)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze, protect from light
• color: white
• solubility: DMSO: 10 mg/mL, methanol: 50 mg/mL
• shipped in: wet ice
• storage temp.: −20°C

Description

General description

A cell-permeable pyridine-containing vinylogous cyanamide compound that acts as a potent and selective inhibitor of MEK (IC₅₀ = 12 nM) with little activity towards MKK3 and MKK4 (IC₅₀ >1 µM). The inhibition is noncompetitive with respect to ERK and the compound displays significant affinity only towards ATP-bound MEK (i.e. noncompetitive with respect to ATP). Exhibits superior potency, solubility, and stability compared to U0126 (Cat. No. 662005) in aqueous solutions. Shown to protect against phorbol ester-mediated ear edema in mice (ED₅₀ of 5 mg/kg, ip.).

A cell-permeable, potent, and selective inhibitor of MEK (IC₅₀ = 12 nM) with little activity towards MKK3 and MKK4 (IC₅₀ >1 µM). The inhibition is non-competitive with respect to ERK and the compound displays significant affinity only towards ATP-bound MEK (i.e. non-competitive with respect to ATP). Exhibits superior potency, solubility, and stability compared to U0126 (Cat. No. 662005) in aqueous solutions. Shown to protect against phorbol ester-mediated ear edema in mice (ED₅₀ of 5 mg/kg, ip.).

Biochem/physiol Actions

Cell permeable: yes

Primary Target
MEK

Product does not compete with ATP.

Target IC₅₀: 12 nM against MEK

Reversible: no

Packaging

Packaged under inert gas

Preparation Note

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

Other Notes

Wityak, J., et al. 2004. Bioorg. Med. Chem. Lett.14, 1483.

Legal Information

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

Disclaimer

Toxicity: Standard Handling (A)

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable