238811

Cdk9 Inhibitor II

The Cdk9 Inhibitor II, also referenced under CAS 140651-18-9, controls the biological activity of Cdk9. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

• Synonym(s): Cdk9 Inhibitor II, 4-(3,5-Diamino-1H-pyrazol-4-ylazo)-phenol
• Empirical Formula (Hill Notation): C₉H₁₀N₆O
• CAS Number: 140651-18-9
• Molecular Weight: 218.22
• UNSPSC Code: 12352200
• NACRES: NA.77

Properties

• Quality Level: 100
• assay: ≥95% (HPLC)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; protect from light
• color: orange
• solubility: DMSO: 10 mg/mL; ethanol: 5 mg/mL
• shipped in: ambient
• storage temp.: 2-8°C
• InChI: 1S/C9H10N6O/c10-8-7(9(11)15-14-8)13-12-5-1-3-6(16)4-2-5/h1-4,16H,(H5,10,11,14,15)
• InChI key: AYZRKFOEZQBUEA-UHFFFAOYSA-N

Description

General description

A cell-permeable azo-pyrazole compound that acts as a potent, ATP-competitive, and Cdk9-selective inhibitor (IC₅₀ = 350 nM, using Cdk9/T1). It inhibits Cdk1/B, Cdk2/E, Cdk2/A, Cdk4/D1, Cdk7/H, and p70S6K only at much higher concentrations (IC₅₀ = 44, 20, 69, 13.5, 26, and 10 µM, respectively) and shows little or no activity against eight other commonly studied kinases even at concentrations as high as 10 µM. Shown to exhibit antiproliferative activity in human tumor cell lines.

Biochem/physiol Actions

Cell permeable: yes

Primary Target
Cdk9

Product competes with ATP.

Reversible: no

Target IC₅₀: 350 nM, using Cdk9/T1

Packaging

Packaged under inert gas

Warning

Toxicity: Irritant (B)

Other Notes

Krystof, V., et al. 2006. J. Med. Chem.49, 6500.

Legal Information

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable