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-P1424A
    Lei-Dab7 TFA
    		Inhibitor 99.75%
    Lei-Dab7 TFA is a high affinity, selective KCa2.2 (SK2) channel blocker (Kd=3.8 nM). Lei-Dab7 TFA exhibits >200-fold selectivity for KCa2.2 over KCa2.1, KCa2.3, KCa3.1, Kv and Kir2.1. Lei-Dab7 TFA increases theta-burst responses and increases LTP in rat hippocampal slices in vitro.
    Lei-Dab7 TFA
  • HY-129146S
    Doxapram-d5 hydrochloride
    		Inhibitor 99.0%
    Doxapram-d5 hydrochloride is deuterium labeled Doxapram hydrochloride. Doxapram hydrochloride is a respiratory stimulant. Doxapram hydrochloride increases breathing rate and depth by acting on the brain's respiratory centers and peripheral chemoreceptors. Doxapram hydrochloride inhibits TASK-1, TASK-3, TASK-1/TASK-3 heterodimeric channel function with EC50s of 410 nM, 37 μM, 9 μM, respectively. Doxapram hydrochloride inhibits the Ca²⁺-activated potassium current (IC50 ≈ 13 μM) and Ca²⁺-independent potassium current (IC50 ≈ 20 μM) in type I cells of the carotid body. Doxapram hydrochloride significantly prolongs the effective refractory period of the atrium and has an anti-arrhythmic effect. Doxapram hydrochloride can be used for the study of respiratory depression such as post-anesthesia respiratory depression, chronic obstructive pulmonary disease and apnea of prematurity.
    Doxapram-d<sub>5</sub> hydrochloride
  • HY-125820
    Sigma-1 receptor antagonist 3
    		Inhibitor 99.47%
    Sigma-1 receptor antagonist 3 (compound135) is a potent and selective Sigma-1 (σ1) receptor antagonist with a Ki of 1.14 nM. Sigma-1 receptor antagonist 3 inhibits Human Ether-a-go-go-Related Gene (hERG) with an IC50 of 1.54 μM. Sigma-1 receptor antagonist 3 has the potential for the neuropathic pain.
    Sigma-1 receptor antagonist 3
  • HY-110110A
    VU0463271 quarterhydrate
    		Antagonist 98.05%
    VU0463271 quarterhydrate is a potent KCC2 antagonist, with an IC50 of 61 nM.
    VU0463271 quarterhydrate
  • HY-W516880
    Desmethylastemizole
    		Inhibitor 98.26%
    Desmethylastemizole (O-Demethylastemizole) , a metabolite of Astemizole (HY-12532), is a β-hematin (βH) inhibitor. Desmethylastemizole has an antiplasmodium activity against P. falciparum with IC50 of 0.12, 0.11 and 0.06  μM for Pf3D7, PfDd2, and PfItG strains, respectively. Desmethylastemizole is also a Histamine H1 receptor antagonist. Desmethylastemizole significantly blocks hERG K+ channels and also inhibits histone-lysine N-methyltransferase EZH2 activity. Desmethylastemizole can be used for long QT syndrome and malaria research.
    Desmethylastemizole
  • HY-113066
    Guanosine 5'-diphosphate
    		Activator
    Guanosine 5'-diphosphate (GDP) is a nucleoside diphosphate that activates adenosine 5'-triphosphate-sensitive K+ channel. Guanosine 5'-diphosphate is a potential iron mobilizer, which prevents the hepcidin-ferroportin interaction and modulates the interleukin-6 (IL-6)/stat-3 pathway. Guanosine 5'-diphosphate can be used in the research of inflammation, such as anemia of inflammation (AI).
    Guanosine 5'-diphosphate
  • HY-B0405AR
    Bupivacaine hydrochloride (Standard)
    		Inhibitor
    Bupivacaine (hydrochloride) (Standard) is the analytical standard of Bupivacaine (hydrochloride). This product is intended for research and analytical applications. Bupivacaine hydrochloride is a NMDA receptor inhibitor.Bupivacaine can block sodium, L-calcium, and potassium channels.Bupivacaine potently blocks SCN5A channels with the IC50 of 69.5 μM. Bupivacaine hydrochloride can be used for the research of chronic pain.
    Bupivacaine hydrochloride (Standard)
  • HY-108585
    VU591 hydrochloride
    		Inhibitor ≥99.0%
    VU591 hydrochloride is a potent, selective renal outer medullary potassium channel (ROMK or Kir1.1) inhibitor, with an IC50 of 0.24 μM. VU591 hydrochloride can be used for neurological research with HY-108585A (the equivalent of VU591 hydrochloride).
    VU591 hydrochloride
  • HY-106688A
    Alinidine hydrobromide
    		Inhibitor 99.0%
    Alinidine (St-567) hydrobromide is a specific bradycardic agent. Alinidine hydrobromide reduces the slope of the diastolic depolarization in sinoatrial tissue and Purkinje fibers. Alinidine hydrobromide shows antiischemic and antiarrhythmic effects.
    Alinidine hydrobromide
  • HY-14188R
    Amiodarone hydrochloride (Standard)
    		Inhibitor
    Amiodarone (hydrochloride) (Standard) is the analytical standard of Amiodarone (hydrochloride). This product is intended for research and analytical applications. Amiodarone hydrochloride, a benzofuran-based Class III antiarrhythmic agent, inhibits WT outwardIhERG tails with an IC50 of ∼45 nM. Amiodarone hydrochloride induces cell proliferation and myofibroblast differentiation via ERK1/2 and p38 MAPK signaling in fibroblasts. Amiodarone hydrochloride can be used in the research of both supraventricular and ventricular arrhythmias.
    Amiodarone hydrochloride (Standard)
  • HY-178494
    Nav1.7-IN-19
    		Inhibitor
    Nav1.7-IN-19 is a potent, selective and orally active Nav1.7 inhibitor with an IC50 of 0.49 μM. Nav1.7-IN-19 shows high selectivity for Nav1.7, with selectivities of 312-fold and 662-fold against Nav1.1 and Nav1.5 in the inactivated state. Nav1.7-IN-19 exhibits weak inhibition on hERG potassium channels. Nav1.7-IN-19 exhibits analgesic effect and can be used for the research of neurological disease.
    Nav1.7-IN-19
  • HY-110234
    Topiramate D12
    		Activator 99.90%
    Topiramate D12 (McN 4853 D12) is a deuterium labeled Topiramate. Topiramate 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 D12
  • HY-120514
    JNc-440
    		98.04%
    JNc-440 is a potent antihypertensive agent. JNc-440 can enhance the interaction of TRPV4 and Ca2+-activated potassium channel 3 (KCa2.3) in endothelial cells. JNc-440 can also enhance vasodilation, and exerted antihypertensive effects in mice.
    JNc-440
  • HY-161158
    KCNK13-IN-1
    		Antagonist 98.3%
    KCNK13-IN-1 (example 71), a KCNK13 antagonist, is an anti-inflammatory agent, with an IC50 of <200 nM for IL-1 β.
    KCNK13-IN-1
  • HY-103067
    A1899
    		99.72%
    A1899 is a potent and highly selective blocker of the K2P channel TASK-1. A1899 has IC50 values of 35.1 nM and 7 nM for TASK-1 channels expressed in oocytes and CHO cells, respectively. A1899 is also an IKur blocker that can be used for the research of cardiovascular diseases.
    A1899
  • HY-113066S2
    Guanosine 5'-diphosphate-d13 dilithium
    		Activator
    Guanosine 5'-diphosphate-d13 (GDP-d13) dilithium is deuterium labeled Guanosine 5'-diphosphate (HY-113066). Guanosine 5'-diphosphate (GDP) is a nucleoside diphosphate that activates adenosine 5'-triphosphate-sensitive K+ channel. Guanosine 5'-diphosphate is a potential iron mobilizer, which prevents the hepcidin-ferroportin interaction and modulates the interleukin-6 (IL-6)/stat-3 pathway. Guanosine 5'-diphosphate can be used in the research of inflammation, such as anemia of inflammation (AI).
    Guanosine 5'-diphosphate-d<sup>13</sup> dilithium
  • HY-B0753R
    Gliclazide (Standard)
    		Inhibitor
    Gliclazide (Standard) is the analytical standard of Gliclazide. This product is intended for research and analytical applications. Gliclazide (S1702) is a whole-cell beta-cell ATP-sensitive potassium currents blocker with an IC50 of 184 nM. Gliclazide is used as an antidiabetic.
    Gliclazide (Standard)
  • HY-148144A
    Clobutinol hydrochloride
    		Inhibitor 99.22%
    Clobutinol hydrochloride is a compound that has anti-tussive effects. Clobutinol hydrochloride affects heart rate and blood pressure, it can be used for cough related research.
    Clobutinol hydrochloride
  • HY-176411
    ONO-TR-772
    		Inhibitor
    ONO-TR-772 (VU6018042) is a selective TREK inhibitor (IC50: 15 nM). ONO-TR-772 enhances recognition memory in the MK-801-stimulated NOR mouse model. ONO-TR-772 can be used in the study of diseases related to cognitive impairment.
    ONO-TR-772
  • HY-105559
    Viquidil
    		Control
    Viquidil (Quinotoxine), an isomer of Quinidine, is a cerebral vasodilator agent. Viquidil shows antithrombotic activity.
    Viquidil
Cat. No. Product Name / Synonyms Application Reactivity