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-P5925A
    Ssm spooky toxin TFA
    		Inhibitor 99.09%
    Ssm Spooky Toxin TFA is found in Scolopendra mutilans that potently inhibits KCNQ (voltage-gated potassium channel family 7) channels, with IC50s of 2.8 μM, 5.26 μM and 0.1-0.3 M for Kv7.4, Kv1.3, and Shal channel, respectivily. Ssm Spooky Toxin TFA inhibits cytokine generation by specifically acting on the KV1.3 channel in T cells. Ssm Spooky Toxin TFA plays an essential role in the centipede’s circulatory system .
    Ssm spooky toxin TFA
  • HY-123264
    RL648_81
    		Inhibitor 99.49%
    RL648_81 is a specific KQT-like subfamily 2/3 (KCNQ2/3) activator with an EC50 of 190 nM. RL648_81 robustly shifts the V1/2 of KCNQ2/3 channels towards hyperpolarized potentials.RL648_81 does not shift the V1/2 of either KCNQ4 or KCNQ5.RL648_81 has?the?potential?for?neurologic disorders associated with neuronal hyperexcitability research.
    RL648_81
  • HY-130353
    Desethylamiodarone hydrochloride
    		Inhibitor 99.0%
    Desethylamiodarone hydrochloride (N-desethylamiodarone hydrochloride) is a major active metabolite of Amiodarone. Desethylamiodarone hydrochloride is formed by CYP3A isoenzymes. Amiodarone is an antiarrhythmic agent for inhibition of ATP-sensitive potassium channel with an IC50 of 19.1 μM.
    Desethylamiodarone hydrochloride
  • HY-126486
    AVE1231
    		Inhibitor 98.61%
    AVE1231 (A293) is a dual-pore potassium channel TASK-1 inhibitor. AVE1231 blocks carbamoylcholine chloride (HY-B1208)-activated IKACh (IC50=8.4 μM). AVE1231 can be used in the study of arrhythmias and atrial fibrillation.
    AVE1231
  • 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-120644
    BMS-919373
    		Inhibitor
    BMS-919373 is a selective, potent IKur current blocker. BMS-919373 can be used for the research of cardiovascular diseases.
    BMS-919373
  • HY-A0236A
    Aprindine hydrochloride
    		Inhibitor 98.96%
    Aprindine hydrochloride is an Ib-class anti-arrhythmic agent. Aprindine hydrochloride mainly exerts its effect by blocking sodium channels (INa), thereby reducing the excitability and conduction velocity of cardiac muscle cells. Aprindine hydrochloride significantly inhibits delayed potassium currents, which helps to prolong the atrial effective refractory period (AERP) and inhibit the occurrence of atrial fibrillation. Aprindine hydrochloride can also regulate intracellular calcium ion concentration by inhibiting Na+/Ca2+ exchange current (INCX), thereby further stabilizing cardiac electrical activity. Aprindine hydrochloride can be used for the study of atrial fibrillation (AF) and ventricular arrhythmias.
    Aprindine hydrochloride
  • HY-148304
    VU6036720
    		Inhibitor 99.89%
    VU6036720 is a potent and specific in vitro inhibitor of Kir4.1/5.1. VU6036720 can inhibit Kir4.1/5.1 channels with an IC50 value of 0.24 μM. VU6036720 can be used for the research of brain and kidney.
    VU6036720
  • HY-178058A
    VU6080824 hydrochloride
    		Inhibitor 98.88%
    VU6080824 (hydrochloride), a derivative of ML-133 (HY-100230), is an inward-rectifier potassium channel (Kir2.1) inhibitor with an IC50 of 0.35  μM. VU6080824 (hydrochloride) has superior thallium flux and manual patch clamp (MPC) functional potency.
    VU6080824 hydrochloride
  • HY-137563
    A2793
    		Inhibitor 98.61%
    A2793 is an efficient dual TWIK-related acid-sensitive K+ channel (TASK)-1/TRESK inhibitor, with an IC50 of 6.8 μM for mTRESK. A2764 is more selective for TRESK, and it only moderately influences TREK-1 and TALK-1.
    A2793
  • HY-B0252S
    Hydrochlorothiazid-d2
    		Activator 98.52%
    Hydrochlorothiazid-d2 is the deuterium labeled Hydrochlorothiazide. Hydrochlorothiazide (HCTZ), an orally active diuretic agent of the thiazide class, inhibits transforming TGF-β/Smad signaling pathway. Hydrochlorothiazide has direct vascular relaxant effects via opening of the calcium-activated potassium (KCA) channel. Hydrochlorothiazide improves cardiac function, reduces fibrosis and has antihypertensive effect.
    Hydrochlorothiazid-d<sub>2</sub>
  • HY-144652
    IDO1-IN-19
    		Inhibitor 98.82%
    IDO1-IN-19 (Compound 17) is an orally active IDO1 inhibitor with an IC50 of CYP2C9 of 8.64 μM. IDO1-IN-19 also acts funciton on cardiac channels, with IC50s of 12 μM (IKr), 40 μM (INa), 8.3 μM (ICa), respectively. IDO1-IN-19 has the potential to study cancer diseases.
    IDO1-IN-19
  • HY-117931
    NS004
    		Activator 99.67%
    NS004 is a potassium (BK) channel activator that increases Iberiotoxin (HY-P0190) or Tetraethylammonium (HY-B1793)-sensitive whole-cell efflux currents. NS004 also significantly increased the activity of individual GH3 cell BK channels and rat brain BK channels reorganized into planar lipid bilayers, causing an increase in channel mean open time, a decrease in intermittent time, and an increase in channel voltage/calcium sensitivity.
    NS004
  • HY-15208
    Clamikalant sodium
    		Inhibitor 98.27%
    Clamikalant sodium (HMR 1098) is an ATP-sensitive potassium (KATP) channel blocker. Clamikalant sodium can be used for the research of arrhythmia.
    Clamikalant sodium
  • HY-12546
    Brevetoxin B
    		Modulator
    Brevetoxin B (Brevetoxin-2) is a red tide toxin. Brevetoxin B affects sodium, potassium and calcium currents in nerve terminals. Brevetoxin B also modulates the metabolic activity of Jurkat cells, reduces cell viability and induces apoptosis. Brevetoxin B can be used in research on synaptic transmission and tumors.
    Brevetoxin B
  • HY-P0256A
    Apamin TFA
    		Inhibitor
    Apamin TFA (Apamine TFA) is an 18 amino acid peptide neurotoxin found in apitoxin (bee venom), is known as a specifically selective blocker of Ca2+-activated K+ (SK) channels and exhibits anti-inflammatory and anti-fibrotic activity.
    Apamin TFA
  • HY-100276
    Naminidil
    		Agonist 99.62%
    Naminidil is a cyanoguanidine KATP opener.
    Naminidil
  • HY-A0176
    Glisoxepide
    		Inhibitor
    Glisoxepide, a sulphonamide derivative, is an orally available nonselective K(ATP) channel blocker, with antihyperglycemic activity and cardiovascular regulation effect.
    Glisoxepide
  • HY-15209R
    Repaglinide (Standard)
    		Antagonist
    Repaglinide (Standard) is the analytical standard of Repaglinide. This product is intended for research and analytical applications. Repaglinide is an insulin secretagogue for the treatment of type-2 diabetes mellitus.
    Repaglinide (Standard)
  • HY-B0341S
    Nicorandil-d4
    		Activator 99.81%
    Nicorandil-d4 (SG-75-d4) is the deuterium labeled Nicorandil. 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-d<sub>4</sub>
Cat. No. Product Name / Synonyms Application Reactivity