KN 93

Cat. No. 1278

KN 93 C26H29ClN2O4S [139298-40-1]

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Chemical Name: N-[2-[[[3-(4-Chlorophenyl)-2-propenyl]methylamino]methyl]phenyl]-N-(2-hydroxyethyl)-4-methoxybenzenesulphonamide

Biological Activity

Potent, cell permeable inhibitor of CaM kinase II (IC50 = 0.37 μM). Also a direct extracellular open channel blocker of voltage-gated potassium channels (IC50 = 307 nM for KV1.5); independent of CaM kinase II inhibition. Water soluble form also available.

Technical Data

Soluble to 100 mM in DMSO with gentle warming
>98 %
Store at +4°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

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Safety Data Sheet: View Safety Data Sheet


Sumi et al (1991) The newly synthesized selective Ca2+/calmodulin dependent protein kinase II inhibitor KN-93 reduces dopamine content in PC12h cells. Biochem.Biophys.Res.Comm. 181 968. PMID: 1662507.

Anderson et al (1998) KN-93, an inhibitor of multifunctional Ca2+/calmodulin-dependent protein kinase, decreases early afterdepolarizations in rabbit heart. J.Pharmacol.Exp.Ther. 287 996. PMID: 9864285.

Patel et al (1999) Calcium/calmodulin-dependent phosphorylation and activation of human Cdc25-C at the G2/M phase transition in HeLa cells. J.Biol.Chem. 274 7958. PMID: 10075693.

Rezazadeh et al (2006) KN-93 (2-[N-(2-Hydroxyethyl)]-N-(4-methoxybenzenesulfonyl)]-amino-N-(4-chlorocinnamyl)-N-methylbenzylamine), a calcium/calmodulin-dependent protein kinase II inhibitor, is a direct extracellular blocker of voltage-gated potassium channels. J.Pharmacol.Exp.Ther. 317 292. PMID: 16368898.

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View Related Products by Product Action

Keywords: KN 93, supplier, K+, channel, blockers, KV, inhibitors, Potassium, Channels, voltage-gated, voltage-dependent, CaM, Kinase, II, kinases, Calmodulin-Activated, calmodulin-dependent, Protein, Ca2+, Binding, modulators, Calcium, Signaling, Signalling, hERG, Human, Ether-A-Go-Go, Gene, KCNQ, KN93, Calmodulin-Dependent Kinase Inhibitors

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