Sematilide HCl 是一种选择性的IKr通道阻滞剂。Sematilide 以浓度依赖性抑制延迟整流钾通道 (K+current)，IC50为 25 μM。Sematilide 是一种 III 类抗心律不齐剂。

Sematilide (CK-1752) is a class III antiarrhythmic. It is a selectively delayed rectifier K+ current (IKr) channel blocker. It inhibits rapidly activating Ik in guinea pig atrial myocytes, resulting in the prolongation of refractoriness and action potential duration.

101526-62-9

C14H24ClN3O3S

349.87

司美利特;Sematilide HCl;CK-1752;CK-1752A

DMSO:10 mM
Powder: -20°C for 3 years
In solvent: -80°C for 2 years