401480

IKK Inhibitor III, BMS-345541

IKK Inhibitor III, BMS-345541, CAS 445430-58-0, is a cell-permeable, potent, selective, and allosteric site-binding inhibitor of IKK-2 (IC₅₀ = ~ 300 nM).

• Synonym(s): IKK Inhibitor III, BMS-345541, 4-(2ʹ-Aminoethyl)amino-1,8-dimethylimidazo[1,2-a]quinoxaline
• Empirical Formula (Hill Notation): C₁₄H₁₇N₅ · 2C₂HF₃O₂
• CAS Number: 445430-58-0
• Molecular Weight: 483.36
• MDL number: MFCD18089812
• UNSPSC Code: 12352200
• NACRES: NA.77
• Assay: ≥96% (HPLC)
• Form: solid
• Storage condition: OK to freeze, desiccated (hygroscopic), protect from light

Properties

• Quality Segment: 100
• assay: ≥96% (HPLC)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze, desiccated (hygroscopic), protect from light
• color: off-white
• solubility: DMSO: 5 mg/mL
• shipped in: ambient
• storage temp.: 2-8°C
• SMILES string: [n]21c(ncc2C)c(nc3c1cc(cc3)C)NCCN
• InChI: 1S/C14H17N5/c1-9-3-4-11-12(7-9)19-10(2)8-17-14(19)13(18-11)16-6-5-15/h3-4,7-8H,5-6,15H2,1-2H3,(H,16,18)
• InChI key: PSPFQEBFYXJZEV-UHFFFAOYSA-N

Description

General description

A cell-permeable quinoxaline compound that displays anti-inflammatory properties. Acts as a potent, selective, and allosteric site-binding inhibitor of IKK-2 (IC₅₀ = ~ 300 nM). Exhibits ~10-fold greater selectivity over IKK-1 (IC₅₀ = ~ 4 µM) and no activity towards IKKε and a panel of more than 15 unrelated protein kinases even at concentrations as high as 100 µM. Inhibits cellular IκBα phosphorylation (IC₅₀ = 4 µM in THP-1 cells) and LPS-induced cytokine production both in vitro (IC₅₀ = 1-5 µM in THP-1 cells) and in vivo (IC₅₀ = 10 mg/kg in mice). Effectively blocks inflammation and joint destruction in a murine arthritis model.

A cell-permeable, potent, selective, and allosteric site-binding inhibitor of IKK-2 (IC₅₀ ~300 nM) that displays anti-inflammatory properties. Exhibits ~10-fold greater selectivity for IKK-2 over IKK-1 (IC₅₀ ~4.0 µM) and does not inhibit IKKε and a panel of more than 15 unrelated protein kinases even at concentrations as high as 100 µM. Inhibits cellular IκBα phosphorylation (IC₅₀ = 4 µM in THP-1 cells) and LPS-induced cytokine production both in vitro (IC₅₀ = 1-5 µM in THP-1 cells) and in vivo (IC₅₀ = 10 mg/kg in mice). Effectively blocks inflammation and joint destruction in a murine arthritis model.

Biochem/physiol Actions

Cell permeable: yes

Product does not compete with ATP.

Reversible: no

Target IC₅₀: ~300 nM against IKK-2; 4 µM against cellular IκBα phosphorylation in THP-1 cells; 1-5 µM LPS-induced cytokine production in THP-1 cells

Packaging

Packaged under inert gas

Physical form

Supplied as bis-TFA salt.

Other Notes

Townsend, R.M., et al. 2004. Transplantation77, 1090.
MacMaster, J.F., et al. 2003. Inflamm. Res.52, 508.
McIntyre, K.W., et al. 2003. Arthritis Rheum.48, 2652.
Burke, J. R., et al. 2003. J. Biol. Chem.278, 1450.

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