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-B0252S1
    Hydrochlorothiazid-13C,d2
    		Activator 98.64%
    Hydrochlorothiazid-13C,d2 is the 13C- and 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[1][2][3].
    Hydrochlorothiazid-<sup>13</sup>C,d<sub>2</sub>
  • HY-109545
    Isopropyl unoprostone
    		Activator
    Isopropyl unoprostone (Unoprostone isopropyl ester), an analogue of a prostaglandin metabolite, is a potent large conductance Ca2+-activated K+ (BK) channels activator. Isopropyl unoprostone has antiglaucoma effects, lowering intraocular pressure (IOP) by increasing aqueous humour outflow. Isopropyl unoprostone can improve retinal sensitivity and the protection of central retinal sensitivity.
    Isopropyl unoprostone
  • HY-108585A
    VU591
    		Inhibitor 98.39%
    VU591 is a potent, selective renal outer medullary potassium channel (ROMK or Kir1.1) inhibitor, with an IC50 of 0.24 μM. VU591 can be used for neurological research with HY-108585 (the equivalent of VU591 hydrochloride).
    VU591
  • HY-B1482A
    Mesoridazine
    		Inhibitor
    Mesoridazine (TPS-23) , a metabolite of Thioridazine (HY-B0965A), acts as an orally active phenothiazine antipsychotic agent. Mesoridazine is a potent and rapid open-channel blocker of human ether-a-go-go related gene (hERG) channels and blocks hERG currents with an IC50 of 550 nM (at 0 mV) in human embryonic kidney 293 cells.Mesoridazine can be used for the research of schizophrenia, as well as certain other psychiatric disorders.
    Mesoridazine
  • 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-P0249A
    Phe-Met-Arg-Phe amide trifluoroacetate
    		Activator 99.90%
    Phe-Met-Arg-Phe amide trifluoroacetate is an activator of K+ current, with ED50 of 23 nM in the peptidergic caudodorsal neurons.
    Phe-Met-Arg-Phe amide trifluoroacetate
  • HY-111934
    Cymarin
    		Inhibitor
    Cymarin, a cardiac glycoside, potently inhibits the Palytoxin (PTX)-induced K+ release (IC50=0.42 μM). Cymarin reveals an antitumor activity against breast cancer and pancreatic cancer. Cymarin exhibits antifeedant and growth inhibitory effects as crop protectant.
    Cymarin
  • 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[1][2][3].
    Nicorandil-d<sub>4</sub>
  • HY-P4742A
    6-FAM-AEEAc-Stichodactyla helianthus Neurotoxin (ShK) (TFA)
    		Inhibitor
    6-FAM-AEEAc-Stichodactyla helianthus Neurotoxin (ShK) TFA (6-FAM-AEEAC-SHK TFA) is a peptide neurotoxin conjugated with a fluorescent marker. 6-FAM-AEEAc-Stichodactyla helianthus Neurotoxin (ShK) TFA can block voltage-gated potassium channels (kv1.1 and kv1.2) to prolong the duration of action potentials, thereby affecting the conduction of neural signals. 6-FAM-AEEAc-Stichodactyla helianthus Neurotoxin (ShK) TFA can be used in neuroscience research.
    6-FAM-AEEAc-Stichodactyla helianthus Neurotoxin (ShK) (TFA)
  • HY-B0551
    Doxapram
    		Inhibitor 99.52%
    Doxapram inhibits TASK-1, TASK-3, TASK-1/TASK-3 heterodimeric channel function with EC50 of 410 nM, 37 μM, 9 μM, respectively.
    Doxapram
  • HY-17504A
    Rosuvastatin
    		Inhibitor
    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
  • HY-B0189B
    Mosapride citrate dihydrate
    		Inhibitor
    Mosapride (TAK-370) citrate dehydrate is a gastroprokinetic agent with 5-hydroxytryptamine4 receptor agonist activity and has been widely used in the research of a variety of gastrointestinal disorders. Mosapride citrate dihydrate potently inhibits Kv4.3 in a concentration-dependent manner with IC50 values of 15.2 μM. Mosapride citrate dihydrateselectively stimulates upper GI motility in vivo.
    Mosapride citrate dihydrate
  • HY-14188S
    Amiodarone-d4 hydrochloride
    		Inhibitor 99.58%
    Amiodarone-d4 (hydrochloride) is the deuterium labeled Amiodarone hydrochloride. Amiodarone hydrochloride, a benzofuran-based Class III antiarrhythmic agent, inhibits WT outwardIhERG tails with an IC50 of ∼45 nM[1]. Amiodarone hydrochloride induces cell proliferation and myofibroblast differentiation via ERK1/2 and p38 MAPK signaling in fibroblasts[2]. Amiodarone hydrochloride can be used in the research of both supraventricular and ventricular arrhythmias[1].
    Amiodarone-d<sub>4</sub> hydrochloride
  • HY-163018
    Kv3.1 modulator 2
    		Modulator
    Kv3.1 modulator 2 (compound 4) is a Kv3.1 channels modulator with an EC50 value of 68 nM.
    Kv3.1 modulator 2
  • HY-112075
    Lidoflazine
    		Inhibitor 98.10%
    Lidoflazine is a high affinity blocker of the HERG (human ether-a-go-go-related gene) K+ channel. Lidoflazine is an antianginal calcium channel blocker that carries a significant risk of QT interval prolongation and ventricular arrhythmia.
    Lidoflazine
  • HY-N9854
    Icariside E4
    		Modulator 98.13%
    Icariside E4 is an antinociceptive agent, and can be isolated from Tabebuia roseo-alba. Icariside E4 has peripheral analgesic activity by ATP-sensitive K+ channel-dependent mechanisms. Icariside E4 also has anti-oxidant, anti-Alzheimer and anti-inflammatory effects.
    Icariside E4
  • HY-108587
    ICA 110381
    		Modulator 99.85%
    ICA 110381 is an orally active Kv7.2/Kv7.3 (KCNQ2/3) potassium channel activator with anticonvulsive properties. ICA 110381 is a KCNQ2/Q3 activator (EC50=0.38 μM) as well as KCNQ1 antagonist (IC50=15 μM).
    ICA 110381
  • HY-N1933
    Allocryptopine
    		Inhibitor 99.74%
    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
  • HY-123264
    RL648_81
    		Inhibitor 99.20%
    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-120355A
    AP14145 hydrochloride
    		Inhibitor 98.3%
    AP14145 hydrochloride is a potent KCa2 (SK) channel negative allosteric modulator with an IC50 of 1.1 μM for KCa2.2 (SK2) and KCa2.3 (SK3) channels. AP14145 hydrochloride inhibition strongly depends on two amino acids, S508 and A533 in the channel. AP14145 hydrochloride prolonged atrial effective refractory period (AERP) in rats and demonstrates antiarrhythmic effects in a Vernakalant-resistant porcine model of atrial fibrillation (AF).
    AP14145 hydrochloride
Cat. No. Product Name / Synonyms Application Reactivity