492031
NS8593
An aminobenzimidazole derivative that selectively and reversibly blocks small conductance Ca2+-activated K+ channels in a Ca2+-dependent manner.
Synonym(s):
NS8593, (R)-N-(Benzimidazol-2-yl)-1,2,3,4-tetrahydro-1-naphthylamine
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About This Item
Empirical Formula (Hill Notation):
C17H17N3
CAS Number:
Molecular Weight:
263.34
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.77
Quality Level
Assay
≥98% (HPLC)
form
powder
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
protect from light
color
white
solubility
DMSO: 100 mg/mL
shipped in
wet ice
storage temp.
2-8°C
SMILES string
C1(NC(N[C@@H]2CCCC3=C2C=CC=C3)=N4)=C4C=CC=C1
General description
An aminobenzimidazole derivative that selectively and reversibly blocks small conductance Ca2+-activated K+ channels (SK1-3; Kd = 420 nM, 600 nM, and 730 nM for SK1, SK2, SK3, respectively) in a Ca2+-dependent manner. It mediates channel gating by interacting with gating structures deep within the inner pore vestibule where Ser507 and Ala532 are deemed to be important for inhibition. Interacts at a site that is distinct from the apamin binding site in SK channels. Can access high-affinity binding sites from both the inside and outside of the cell membrane. Does not affect QT intervals, but prolongs the atrial effective refractive period and prevents acetylcholine-induced atrial fibrillations in ex vivo and in vivo models. Also shown to reversibly block TRPM7 channel (IC50 = 1.6 mM) in smooth muscle cells, primary podocytes, HEK293 cells expressing TRPM7, and ventricular myocytes in a Mg2+-dependent manner and blocks the motility of cells in culture.
Packaging
Packaged under inert gas
Warning
Toxicity: Standard Handling (A)
Reconstitution
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
Other Notes
Chubanov, V., et al. 2012. Brit. Journ. Pharm.166, 1357.
Jenkins, D., et al. 2011. Hypertension.57, 1129.
Jenkins, D., et al. 2011. Mol. Pharm.79, 899.
Jenkins, D., et al. 2011. Mol. Pharm.79, 899.
Lasse, S., et al. 2011. J. Cardiov. Pharm.57, 672.
Diness, J., et al. 2010. Circ Arrhythm Electrophusiol.3, 380.
Ji, H., et al. 2009. Eur. J. Neurosci.9, 1883.
Strobaek, D., et al. 2006. Mol. Pharm.70, 1771.
Jenkins, D., et al. 2011. Hypertension.57, 1129.
Jenkins, D., et al. 2011. Mol. Pharm.79, 899.
Jenkins, D., et al. 2011. Mol. Pharm.79, 899.
Lasse, S., et al. 2011. J. Cardiov. Pharm.57, 672.
Diness, J., et al. 2010. Circ Arrhythm Electrophusiol.3, 380.
Ji, H., et al. 2009. Eur. J. Neurosci.9, 1883.
Strobaek, D., et al. 2006. Mol. Pharm.70, 1771.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
WGK
WGK 2
Certificates of Analysis (COA)
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