2. Signaling Pathways
  3. Membrane Transporter/Ion Channel
  4. Potassium Channel

Potassium Channel

KcsA

Potassium Channel

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Potassium channels are the most widely distributed type of ion channel and are found in virtually all living organisms. They form potassium-selective pores that span cell membranes. Potassium channels are found in most cell types and control a wide variety of cell functions. Potassium channels function to conduct potassium ions down their electrochemical gradient, doing so both rapidly and selectively. Biologically, these channels act to set or reset the resting potential in many cells. In excitable cells, such asneurons, the delayed counterflow of potassium ions shapes the action potential. By contributing to the regulation of the action potential duration in cardiac muscle, malfunction of potassium channels may cause life-threatening arrhythmias. Potassium channels may also be involved in maintaining vascular tone.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-167866
    Ersentilide
    		Inhibitor
    Ersentilide, a benzamide derivative, is a is a β1-adrenoceptor antagonist and Ikr blocker. Ersentilide is effective in several intact animal models of arrhythmia.
    Ersentilide
  • HY-18172B
    (-)-KCC2 blocker 1
    		Control 99.19%
    (-)-KCC2 blocker 1 is an enantiomer of KCC2 blocker 1 (HY-18172). KCC2 blocker 1 (compound 13) is an orally active and selective K+-Cl- cotransporter KCC2 blocker with an IC50 of 1 μM.
    (-)-KCC2 blocker 1
  • HY-N1933R
    Allocryptopine (Standard)
    		Inhibitor
    Allocryptopine (Standard) is the analytical standard of Allocryptopine. This product is intended for research and analytical applications. Allocryptopine, a derivative of tetrahydropalmatine, is extracted from Macleaya cordata (Thunb.) Pers. Papaveraceae. Allocryptopine has antiarrhythmic effects and potently blocks human ether-a-go-go related gene (hERG) current.
    Allocryptopine (Standard)
  • HY-14149S
    Cisapride-d6
    		Inhibitor
    Cisapride-d6 (R51619-d6) is deuterium labeled Cisapride. Cisapride (R 51619) is an orally active 5-HT4 receptor agonist with an EC50 value of 140 nM. Cisapride is a hERG blocker with an IC50 value of 9.4 nM. Cisapride is a gastroprokinetic agent that stimulates gastrointestinal motor activity.
    Cisapride-d<sub>6</sub>
  • HY-137381
    6-Bnz-cAMP
    		Inhibitor
    6-Bnz-cAMP (N6-Benzoyl-cAMP), a derivative of cyclic adenosine monophosphate (cAMP), is a potent inhibitor of the bTREK-1 potassium channel. 6-Bnz-cAMP can strongly inhibit the bTREK-1 potassium channel through a protein kinase A (PKA) independent mechanism. 6-Bnz-cAMP can be used to explore potential signal transduction proteins in the cAMP signaling pathway.
    6-Bnz-cAMP
  • HY-B1114R
    Gliquidone (Standard)
    Gliquidone (Standard) is the analytical standard of Gliquidone. This product is intended for research and analytical applications. Gliquidone (AR-DF 26) is an anti-diabetic agent in the sulfonylurea class, used in the treatment of diabetes mellitus type 2.
    Gliquidone (Standard)
  • HY-108163
    SB-237376 free base
    		Antagonist
    SB-237376 (free base) is a potassium and calcium channel blocker. SB-237376 (free base) can inhibit the rapidly activating delayed rectifier potassium current I(Kr) (IC50 is 0.42 μM), and at high concentrations, it blocks the L-type calcium current I(Ca,L). In the rabbit ventricular model, SB-237376 (free base) can induce early afterdepolarizations (EADs) at a concentration of 3 µM. Compared to other IKr inhibitors such as dl-sotalol, SB-237376 has a lower proarrhythmic risk. SB-237376 (free base) holds potential for research in the field of arrhythmia-related diseases.
    SB-237376 free base
  • HY-B2133R
    Cloperastine (hydrochloride) (Standard)
    		Inhibitor
    Cloperastine (hydrochloride) (Standard) is the analytical standard of Cloperastine (hydrochloride). This product is intended for research and analytical applications. Cloperastine hydrochloride inhibits the hERG K+ currents in a concentration-dependent manner with an IC50 value of 27 nM.
    Cloperastine (hydrochloride) (Standard)
  • HY-126106
    (BrMT)2
    		Inhibitor
    (BrMT)2 (compound 2) is a non-peptide snail toxin that slows down the activation of Kv1.1 channels.
    (BrMT)2
  • HY-B0567R
    Dequalinium (Chloride) (Standard)
    		Inhibitor
    Dequalinium (Chloride) (Standard) is the analytical standard of Dequalinium (Chloride). This product is intended for research and analytical applications. Dequalinium chloride is an Apamin (HY-P0256)-sensitive potassium channel selective blocker. Dequalinium chloride is a cationic, lipophilic mitochondrial poison. Dequalinium chloride is also an antagonist pf α7 nAChR, and an anti-microbial antiseptic agent with a broad bactericidal and fungicidal activity.
    Dequalinium (Chloride) (Standard)
  • HY-126038
    BTS 39542
    		Inhibitor
    BTS 39542 is an orally active inhibitor for Na+ K+ Cl cotransport system, that exhibits diuretic activity, and can be used in hypertension and edema research.
    BTS 39542
  • HY-17504AS1
    Rosuvastatin-d6
    		Inhibitor
    Rosuvastatin-d6 (ZD 4522-d6) is deuterium labeled Rosuvastatin. Rosuvastatin (ZD 4522) is a competitive HMG-CoA reductase inhibitor with an IC50 of 11 nM. Rosuvastatin potently blocks hERG current with an IC50 of 195 nM, delayed cardiac repolarization, and thereby prolonged action potential durations (APDs) and corrected QT interval (QTc) intervals. Rosuvastatin reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin effectively lowers low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
    Rosuvastatin-d<sub>6</sub>
  • HY-13100A
    (S)-PF 03716556
    (S)-PF 03716556 is a K+-competitive acid blocker with gastric acid pump inhibitory activity. (S)-PF 03716556 can be used to inhibit disease states mediated by acid pump inhibitory activity.
    (S)-PF 03716556
  • HY-B0122S
    Topiramate-13C6
    		Activator
    Topiramate-13C6 (McN 4853-13C6) is the 13C labeled isotope of Topiramate (HY-B0122). Topiramate (McN 4853) is a broad-spectrum antiepileptic agent. Topiramate is a GluR5 receptor antagonist. Topiramate produces its antiepileptic effects through enhancement of GABAergic activity, inhibition of kainate/AMPA receptors, inhibition of voltage-sensitive sodium and calcium channels, increases in potassium conductance, and inhibition of carbonic anhydrase.
    Topiramate-<sup>13</sup>C<sub>6</sub>
  • HY-134953
    Mephetyl tetrazole
    		Inhibitor
    Mephetyl tetrazole is a potassium channel Kv1.5 blocker, with an IC50 of 330 nM. Mephetyl tetrazole can be used for the research of cancer.
    Mephetyl tetrazole
  • HY-14149R
    Cisapride (Standard)
    		Inhibitor
    Cisapride (Standard) is the analytical standard of Cisapride. This product is intended for research and analytical applications. Cisapride (R 51619) is an orally active 5-HT4 receptor agonist with an EC50 value of 140 nM. Cisapride is a hERG blocker with an IC50 value of 9.4 nM. Cisapride is a gastroprokinetic agent that stimulates gastrointestinal motor activity.
    Cisapride (Standard)
  • HY-171469
    SKP-451
    		Agonist
    SKP-451 is an ATP-sensitive potassium (K+) channel agonist. SKP-451 activates the ATP-sensitive K+ channels, promotes the efflux of K+, causes membrane hyperpolarization, and inhibits the influx of Ca2+, thereby relaxing the vascular smooth muscle. SKP-451 relaxs the canine coronary artery, rabbit basilar artery, and vertebral artery. SKP-451 also reduces the mean arterial blood pressure of conscious spontaneously hypertensive rats (SHR). SKP-451 is promising for research of cardiovascular diseases.
    SKP-451
  • HY-12532R
    Astemizole (Standard)
    		Inhibitor
    Astemizole (Standard) is the analytical standard of Astemizole. This product is intended for research and analytical applications. Astemizole (R 43512), a second-generation antihistamine agent to diminish allergic symptoms with a long duration of action, is a histamine H1-receptor antagonist, with an IC50 of 4 nM. Astemizole also shows potent hERG K+ channel blocking activity with an IC50 of 0.9 nM. Astemizole has antipruritic effects.
    Astemizole (Standard)
  • HY-18063A
    ML252 hydrochloride
    		Inhibitor
    ML252 hydrochloride is a selective inhibitor of KCNQ2 (Kv7.2) channel with IC50s of 69 nM, 2.92 μM, 0.12 μM and 0.20 μM for KCNQ2, KCNQ1 (Kv7.1), KCNQ2/Q3 and KCNQ4, respectively. ML252 hydrochloride also inhibits Cytochrome P450 with IC50s of 6.1 nM (CYP1A2), 18.9 nM (CYP2C9), 3.9 nM (CYP3A4), 19.9 nM (CYP2D6), respectively. ML252 hydrochloride shows highly brain penetrant.
    ML252 hydrochloride
  • HY-B0341R
    Nicorandil (Standard)
    		Activator
    Nicorandil (Standard) is the analytical standard of Nicorandil. This product is intended for research and analytical applications. Nicorandil (SG-75) is a potent potassium channel activator and targets vascular nucleoside diphosphate-dependent K+ channels and cardiac ATP-sensitive K+ channels (KATP). Nicorandil is a nicotinamide ester with vasodilatory and cardioprotective effects and has the potential for angina and forischemic heart diseases.
    Nicorandil (Standard)
Cat. No. Product Name / Synonyms Application Reactivity