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-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)
  • 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-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-B0682S
    Mitiglinide-d8 calcium hydrate
    		Antagonist
    Mitiglinide-d8 (calcium hydrate) (KAD-1229-d8) is the deuterium labeled Mitiglinide calcium hydrate. Mitiglinide calcium hydrate (KAD-1229), an insulinotropic agent, is an ATP-sensitive K+ (KATP) channel antagonist. Mitiglinide calcium hydrate is highly specific to the Kir6.2/SUR1 complex (the pancreatic beta-cell KATP channel). Mitiglinide Calcium hydrate can be used for the research of type 2 diabetes[1][2].
    Mitiglinide-d<sub>8</sub> calcium hydrate
  • 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
Cat. No. Product Name / Synonyms Application Reactivity