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-114540
    CP-339818
    		Inhibitor
    CP-339818 is a non-peptide Kv1.3 channel (IC50 = 200 nM) and Kv1.4 channel blocker. CP 339818 inhibits HCN channel with IC50s of 18.9 μM and 43.4 μM against HCN1 and HCN4 (high Cl-). CP-339818 has significantly weaker blocking effects on Kv1.1, Kv1.2, Kv1.5, Kv1.6, Kv3.1-4, and Kv4.2 channels. CP-339818 selectively blocked Kv1.3, thereby inhibiting the activation process of human T cells. CP-339818 can be used to study the physiological functions of HCN and Kv channels.
    CP-339818
  • HY-134320A
    8-Azido-ATP tetrasodium
    		Inhibitor
    8-Azido-ATP (8-Azidoadenosine 5'-triphosphate) tetrasodium, a photoreactable nucleotide analog, is useful for the identification of proteins, such as DNA-dependent RNA polymerase. 8-Azido-ATP tetrasodium is a click chemistry reagent that contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. 8-Azido-ATP tetrasodium can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
    8-Azido-ATP tetrasodium
  • HY-175336
    KCNT1-IN-2
    		Inhibitor
    KCNT1-IN-2 (I-42a) is a KCNT1 inhibitor. KCNT1-IN-2 can be used in research related to neurological disorders.
    KCNT1-IN-2
  • HY-B0551AR
    Doxapram hydrochloride hydrate (Standard)
    		Inhibitor
    Doxapram hydrochloride hydrate (Standard) is the analytical standard of Doxapram hydrochloride hydrate (HY-B0551A). This product is intended for research and analytical applications. Doxapram hydrochloride hydrate is a respiratory stimulant. Doxapram hydrochloride hydrate increases breathing rate and depth by acting on the brain's respiratory centers and peripheral chemoreceptors. Doxapram hydrochloride hydrate inhibits TASK-1, TASK-3, TASK-1/TASK-3 heterodimeric channel function with EC50s of 410 nM, 37 μM, 9 μM, respectively. Doxapram hydrochloride hydrate 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 hydrate significantly prolongs the effective refractory period of the atrium and has an anti-arrhythmic effect. Doxapram hydrochloride hydrate can be used for the study of respiratory depression such as post-anesthesia respiratory depression, chronic obstructive pulmonary disease and apnea of prematurity.
    Doxapram hydrochloride hydrate (Standard)
  • HY-B0380AR
    Trimebutine maleate (Standard)
    		Inhibitor
    Trimebutine maleate (Standard) is the analytical standard of Trimebutine maleate (HY-B0380A). This product is intended for research and analytical applications. Trimebutine maleate is a multi-target inhibitor and opioid receptor agonist with antimuscarinic activity. Trimebutine maleate inhibits L-type Ca2+ channels and large-conductance calcium-activated potassium channels (BKCa channels), thereby inhibiting extracellular calcium influx and potassium ion efflux. Trimebutine maleate also targets Toll-like receptors, inhibits Toll-like receptor 2/4/7/8/9 signals, and inhibits LPS-induced IRAK1 activation, as well as ERK1/2, JNK and NF-κB activation, thereby exerting anti-inflammatory effects. Trimebutine maleate also induces tumor cell apoptosis by inhibiting the AKT/ERK pathway. Trimebutine maleate also inhibits excessive contraction of smooth muscle and can be used in the study of gastrointestinal disorders such as irritable bowel syndrome (IBS).
    Trimebutine maleate (Standard)
  • HY-B0563AR
    Ropivacaine hydrochloride monohydrate (Standard)
    		Inhibitor
    Ropivacaine (hydrochloride monohydrate) (Standard) is the analytical standard of Ropivacaine (hydrochloride monohydrate). This product is intended for research and analytical applications. Ropivacaine hydrochloride monohydrate is a potent sodium channel blocker and blocks impulse conduction via reversible inhibition of sodium ion influx in nerve fibrese. Ropivacaine is also an inhibitor of K2P (two-pore domain potassium channel) TREK-1 with an IC50 of 402.7 μM in COS-7 cell's membrane. Ropivacaine is widely used for regional anesthesia and neuropathic pain management in vivo.
    Ropivacaine hydrochloride monohydrate (Standard)
  • HY-101422R
    GAL-021 (Standard)
    		Inhibitor
    GAL-021 (Standard) is the analytical standard of GAL-021 (HY-101422). This product is intended for research and analytical applications. GAL-021 is a potent BKCa-channel blocker. GAL-021 inhibits KCa1.1 in GH3 cells. GAL-021 is a novel breathing control modulator that is based on selective modification of the almitrine pharmacophore. GAL-021 increases minute ventilation in rats and non-human primates.
    GAL-021 (Standard)
  • HY-108577AR
    XE991 (Standard)
    		Inhibitor
    XE991 (Standard) is the analytical standard of XE991 (HY-108577A). This product is intended for research and analytical applications. XE 991, a Kv7 (KCNQ) channels blocker, potently inhibits Kv7.1 (KCNQ1), Kv7.2 (KCNQ2), Kv7.2 + Kv7.3 (KCNQ3) channel, and M-current with IC50s of 0.75 μM, 0.71 μM, 0.6 μM, and 0.98 μM, respectively.
    XE991 (Standard)
  • HY-126179R
    Fenquizone (Standard)
    		Inhibitor
    Fenquizone (MG-13054) (Standard) is the analytical standard of Fenquizone (HY-126179). This product is intended for research and analytical applications. Fenquizone is an orally active diuretic. Fenquizone acts primarily on the diluting segment of the nephron cortex, similar to thiazide diuretics. Fenquizone demonstrates diuretic and natriuretic potency and duration of action comparable to thiazide diuretics but weaker than loop diuretics.​ Fenquizone reduces CH₂O without affecting TCH₂O, does not increase calcium/phosphate excretion, and has no loop or collecting duct effects. Fenquizone is used in the study of edema and hypertension.
    Fenquizone (Standard)
  • HY-107319R
    Almitrine mesylate (Standard)
    		Inhibitor
    Almitrine mesylate (Standard) (Almitrine bismesylate (Standard)) is the analytical standard of Almitrine mesylate (HY-107319). This product is intended for research and analytical applications. Almitrine mesylate, a peripheral chemoreceptor agonist, inhibits selectively the Ca2+-dependent K+ channel.
    Almitrine mesylate (Standard)
  • HY-101433R
    N-Acetylprocainamide hydrochloride (Standard)
    		Inhibitor
    N-Acetylprocainamide (Acecainide) hydrochloride (Standard) is the analytical standard of N-Acetylprocainamide hydrochloride (HY-101433). This product is intended for research and analytical applications. N-Acetylprocainamide hydrochloride is a class III antiarrhythmic, which blocks K+ channels. N-Acetylprocainamide hydrochloride exerts inhibitory effects on the maximum following frequency (MFF) of isolated rabbit atria. N-Acetylprocainamide hydrochloride can be used for the study of arrhythmias.
    N-Acetylprocainamide hydrochloride (Standard)
  • HY-N0221S
    Daurisoline-d2
    		Inhibitor
    Daurisoline-d2 is the deuterium labeled Daurisoline (HY-N0221). Daurisoline is a bis-benzylisoquinoline alkaloid that can be isolated from Menispermum dauricum and Rhizoma Menispermi. Daurisoline exerts a blocking effect on hERG and has antiarrhythmic effects. Daurisoline is a potent autophagy blocker that can be used for the research of cancer.
    Daurisoline-d<sub>2</sub>
  • HY-12533R
    Disopyramide (Standard)
    		Inhibitor
    Disopyramide (Standard) is the analytical standard of Disopyramide. This product is intended for research and analytical applications. Disopyramide (Dicorantil) is a class IA antiarrhythmic agent with efficacy in ventricular and atrial arrhythmias. Disopyramide blocks the fast inward sodium current of cardiac muscle and prolongs the duration of cardiac action potentials. Disopyramide inhibits HERG encoded potassium channels. Disopyramide also exhibits complex protein binding, and has a potent negative inotropic action.
    Disopyramide (Standard)
  • HY-B0259A
    Indapamide hemihydrate
    		Inhibitor
    Indapamide hemihydrate is an orally active sulphonamide diuretic agent, that can reduce blood pressure by decreasing vascular reactivity and peripheral vascular resistance. Indapamide hemihydrate is also can reduce left ventricular hypertrophy.
    Indapamide hemihydrate
  • HY-155941
    5-Hydroxydecanoic acid
    		Inhibitor
    5-Hydroxydecanoic acid (5-HD） is a KATP channel antagonist，which has the effect of blocking the K KATP channel only during ischaemia by competing with the ATP binding site and does not affect pancreatic KATP channels.
    5-Hydroxydecanoic acid
  • HY-N0221S2
    Daurisoline-d11
    		Inhibitor
    Daurisoline-d11 is the deuterium labeled Daurisoline (HY-N0221). Daurisoline is a bis-benzylisoquinoline alkaloid that can be isolated from Menispermum dauricum and Rhizoma Menispermi. Daurisoline exerts a blocking effect on hERG and has antiarrhythmic effects. Daurisoline is a potent autophagy blocker that can be used for the research of cancer.
    Daurisoline-d<sub>11</sub>
  • HY-N8372
    Nalanthalide
    		Inhibitor
    Nalanthalide is a voltage-gated potassium channel Kv1.3 blocker (IC50=3.9 µM) and a potential immunosuppressant. Nalanthalide can be used for research on inflammatory immune diseases, such as neuroinflammation.
    Nalanthalide
  • HY-B0189AR
    Mosapride citrate (Standard)
    		Inhibitor
    Mosapride (citrate) (Standard) is the analytical standard of Mosapride (citrate). This product is intended for research and analytical applications. Mosapride citrate is an orally active gastroenterokinetic compound. Mosapride citrate is a 5HT4 agonist. Mosapride citrate is a CYP inducer. Mosapride citrate has a concentration-dependent inhibitory effect on Kv4.3, and its IC50 value is 15.2 μM. Mosapride citrate can be used in the study of gastrointestinal diseases.
    Mosapride citrate (Standard)
  • HY-133926
    5-O-Desmethyl donepezil
    		Inhibitor
    5-O-Desmethyl donepezil is a metabolite of Donepezil (HY-14566). 5-O-Desmethyl donepezil is an inhibitor for hERG channel with an IC50 of 1.5 μM.
    5-O-Desmethyl donepezil
  • HY-W027553R
    Ipidacrine (Standard)
    		Inhibitor
    Ipidacrine (Standard) is the analytical reference standard of Ipidacrine. This product is used for research and analytical applications. Ipidacrine is orally active and blood-brain-barrier-penetrant AChE and BuChE inhibitors with IC50 values of 1 μM and 1.9 μM, respectively, which is also a partial agonist of M2-cholinergic receptors and a reversible cholinesterase inhibitor. Ipidacrine has a stimulating effect on neuromuscular transmission and excitation along the nerve fibres with a moderately anti-pain effect. Ipidacrine is an aminopyridines and is structurally similar to Tacrine (HY-111338). Ipidacrine is effective in various amnesia models, improves erectile function and inhibits K+ and Na+-channels in the neuronal membrane in diabetic rats. Ipidacrine is promising for research of Alzheimer’s disease, ischaemic stroke, idiopathic neuropathy of the facial nerve, diabetes mellitus-induced erectile dysfunction and other deficits in central or peripheral cholinergic deseases.
    Ipidacrine (Standard)
Cat. No. Product Name / Synonyms Application Reactivity