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-108573R
    P-1075 (Standard)
    		Activator
    P-1075 (Standard) is the analytical standard of P-1075. This product is intended for research and analytical applications. P-1075 is a potent activator of sulfonylurea receptor 2-associated ATP-sensitive potassium channels (SUR2-KIR6), with an EC50 value of 45 nM for SUR2B-KIR6 channel activation. P-1075 also P1075 opens mitochondrial K(ATP) channels and generates reactive oxygen species resulting in cardioprotection of rabbit hearts.
    P-1075 (Standard)
  • 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)
  • HY-B0432R
    Propafenone (Standard)
    		Inhibitor
    Propafenone (Standard) is the analytical standard of Propafenone. This product is intended for research and analytical applications. Propafenone (SA-79), a sodium-channel blocker, acts an antiarrhythmic agent. Propafenone also has high affinity for the β receptor (IC50=32 nM). Propafenone blocks the transient outward current (Ito) and the sustained delayed rectifier K current (Isus) with IC50 values of 4.9 μm and 8.6 μm, respectively. Propafenone suppresses esophageal cancer proliferation through inducing mitochondrial dysfunction and induce apoptosis.
    Propafenone (Standard)
  • HY-B0112R
    Minoxidil (Standard)
    		Activator
    Minoxidil (Standard) is the analytical standard of Minoxidil. This product is intended for research and analytical applications. Minoxidil (U10858) is an ATP-sensitive potassium (KATP) channel opener, a potent oral antihypertensive agent and a peripheral vasodilator that promotes vasodilation also affects hair growth. Minoxidil is also a potent inhibitor of soybean lipoxygenaseare with an IC50 of 20 μM.
    Minoxidil (Standard)
  • HY-120454
    G-479
    		Inhibitor
    G-479 is the inhibitor for MEK and hERG channel (IC50=14 μM). G-479 inhibits the proliferation of HCT-116 and A375 with IC50 of 0.049 μM and 0.004 μM. G-479 exhibits good metabolic stability in liver microsomes and good pharmacokinetic characteristics in rats.
    G-479
  • HY-100545R
    BAPTA-AM (Standard)
    		Inhibitor
    BAPTA-AM (Standard) is the analytical standard of BAPTA-AM. This product is intended for research and analytical applications. BAPTA-AM is a well-known membrane permeable Ca2+ chelator. BAPTA-AM inhibits hERG channels, hKv1.3 and hKv1.5 channels in HEK 293 cells with IC50s of 1.3 μM, 1.45 μM and 1.23 μM, respectively.
    BAPTA-AM (Standard)
  • HY-P1409
    ADWX 1
    		Inhibitor
    ADWX 1 is a new peptide inhibitor that is potent and selective for Kv1.3 with an IC50 value of 1.89 pM. ADWX 1 inhibits Kv1.3 channel activity specifically to inhibit both the initial calcium signaling and NF-κB activation. ADWX 1 ameliorates the disease in rats of experimental autoimmune encephalomyelitis (EAE) models. ADWX 1 can be used to study T cell-mediated autoimmune diseases.
    ADWX 1
  • HY-14257
    BMS-191095 hydrochloride
    		Activator
    BMS-191095 hydrochloride is a mitochondrial KATP channel opener. BMS-191095 hydrochloride can protect the myocardium without causing vasodilation or affecting electrophysiology, by prolonging the contraction time during ischemia, improving contractile function after reperfusion, and reducing lactate dehydrogenase (LDHM) release, thereby exerting its cardioprotective effects.
    BMS-191095 hydrochloride
  • HY-B0267R
    Oxybutynin (Standard)
    		Inhibitor
    Oxybutynin (Standard) is the analytical standard of Oxybutynin. This product is intended for research and analytical applications. Oxybutynin is an anticholinergic agent, which inhibits vascular Kv channels in a concentration-dependent manner, with an IC50 of 11.51 μM. Oxybutynin is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Oxybutynin (Standard)
  • HY-B0259S3
    Indapamide-d6
    		Inhibitor
    Indapamide-d6 is a deuterated labeled Indapamide. Indapamide is an orally active sulphonamide diuretic agent, that can reduce blood pressure by decreasing vascular reactivity and peripheral vascular resistance. Indapamide is also can reduce left ventricular hypertrophy.
    Indapamide-d<sub>6</sub>
  • HY-13918R
    Etimizol (Standard)
    		Inhibitor
    Etimizol (Standard) is the analytical standard of Etimizol. This product is intended for research and analytical applications. Etimizol(Ethymisole; Antiffine; Ethylnorantifein) was shown to relieve amnesia effectively in the origin of which there is the hypoxic component (hypobaric hypoxia, actinomycin D, mechanical injury of the brain). Etimizol can decrease the K-+ permeability of neurons' membrane during action potential.
    Etimizol (Standard)
  • HY-108584R
    Flindokalner (Standard)
    		Modulator
    Flindokalner (Standard) is the analytical standard of Flindokalner. This product is intended for research and analytical applications. Flindokalner (BMS-204352) is a potassium channel modulator. Flindokalner is a positive modulator of all neuronal Kv7 channel subtypes expressed in HEK293 cells. Flindokalner is also a large conductance calcium-activated K channel (BKca) positive modulator. Flindokalner shows a negative modulatory activity at Kv7.1 channels (Ki=3.7 μM), and acts as a negative modulator of GABAA receptors. Flindokalner shows anxiolytic efficacy in vivo.
    Flindokalner (Standard)
  • HY-B0772
    Nifekalant
    		Inhibitor
    Nifekalant (MS-551), a class III antiarrhythmic agent, is a IKr potassium channel blocker with an IC50 of 10 μM. Nifekalant can be used for refractory ventricular tachyarrhythmias research.
    Nifekalant
  • HY-175226
    DPP8/9-IN-2
    		Inhibitor
    DPP8/9-IN-2 (Compound 21) is a DPP8/9 inhibitor with IC50 values of 0.22 nM and 3 nM, respectively, and Ki values of 2.9 nM and 6 nM, respectively . DPP8/9-IN-2 has certain cardiotoxicity, with IC50 values of 0.7 μM, 29.0 μM and 27.7 μM for hERG potassium channel, Nav1.5 sodium channel and Cav1.2 calcium channel, respectively. DPP8/9-IN-2 can be used in the research of diseases such as tumors.
    DPP8/9-IN-2
  • HY-15551R
    E-4031 (Standard)
    		Inhibitor
    E-4031 (Standard) is the analytical standard of E-4031. This product is intended for research and analytical applications. E-4031 is a selective hERG potassium channel blocker for use in class III anti-arrhythmic studies.
    E-4031 (Standard)
  • HY-12533AR
    Disopyramide phosphate (Standard)
    		Inhibitor
    Disopyramide (phosphate) (Standard) is the analytical standard of Disopyramide (phosphate). This product is intended for research and analytical applications. Disopyramide phosphate is a class IA antiarrhythmic agent with efficacy in ventricular and atrial arrhythmias. Disopyramide phosphate blocks the fast inward sodium current of cardiac muscle and prolongs the duration of cardiac action potentials. Disopyramide phosphate inhibits HERG encoded potassium channels. Disopyramide phosphate also exhibits complex protein binding, and has a potent negative inotropic action.
    Disopyramide phosphate (Standard)
  • HY-12882AR
    Ifenprodil tartrate (Standard)
    		Inhibitor
    Ifenprodil (tartrate) (Standard) is the analytical standard of Ifenprodil (tartrate). This product is intended for research and analytical applications. Ifenprodil tartrate is a typical noncompetitive NMDA receptor antagonist. Ifenprodil tartrate exerts high affinity at NR1A/NR2B receptors (IC50=0.34 μM) over 400-fold than at NR1A/NR2A receptors (IC50=146 μM). Ifenprodil tartrate inhibits GIRK (Kir3), reduces inward currents through the basal GIRK activity. Ifenprodil tartrate has the potential to be a cerebral vasodilator.
    Ifenprodil tartrate (Standard)
  • HY-P0249
    Phe-Met-Arg-Phe, amide
    		Activator
    Phe-Met-Arg-Phe, amide dose dependently (ED50=23 nM) activates a K+ current in the peptidergic caudodorsal neurons.
    Phe-Met-Arg-Phe, amide
  • HY-P0268
    Myomodulin
    		Modulator
    Myomodulin is a neuropeptide present in molluscs, insects, and gastropods.
    Myomodulin
  • HY-U00201
    KRN4884
    		Activator
    KRN4884 is a K+ channel opener. In the presence of intracellular ATP (1 mM), KRN4884 (0.1-3 μM) activates KATP channels in a concentration-dependent manner (EC50=0.55 μM).
    KRN4884
Cat. No. Product Name / Synonyms Application Reactivity