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-B1221R
    Flufenamic acid (Standard)
    		Activator
    Flufenamic acid (Standard) is the analytical standard of Flufenamic acid. This product is intended for research and analytical applications. Flufenamic acid is a non-steroidal anti-inflammatory agent, inhibits cyclooxygenase (COX), activates AMPK, and also modulates ion channels, blocking chloride channels and L-type Ca2+ channels, modulating non-selective cation channels (NSC), activating K+ channels. Flufenamic acid binds to the central pocket of TEAD2 YBD and inhibits both TEAD function and TEAD-YAP-dependent processes, such as cell migration and proliferation.
    Flufenamic acid (Standard)
  • HY-129699
    RH01617
    		Inhibitor
    RH01617 is a Kv1.5. potassium channel and MMP-13 inhibitor. RH01617 can be used for research of atrial fibrillation.
    RH01617
  • HY-133614
    Dihydroisopimaric acid
    		Activator
    Dihydroisopimaric acid activates large conductance Ca2+ activated K+ (BK) channels alphabeta1 in the direct measurement of BKalphabeta1 opening under whole-cell voltage clamp.
    Dihydroisopimaric acid
  • HY-W783680
    Potassium ionophore III
    		Activator
    Potassium ionophore III (BME-44) is a specific potassium ion carrier with high selectivity for sodium and ammonium ions and high lipophilicity.
    Potassium ionophore III
  • HY-B0122S1
    Topiramate-13C
    		Activator
    Topiramate-13C (McN 4853-13C) is 13C labeled Topiramate. 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>
  • HY-B0920R
    Tolazamide (Standard)
    Tolazamide (U-17835) (Standard) is the analytical standard of Tolazamide. This product is intended for research and analytical applications. Tolazamide is an orally active sulfonylurea agent that inhibits sulfonylurea receptor 1 (SUR1) linked to the inwardly rectifying potassium channel (IC50 = 4.2 µM in HEK293 cells transfected with the human receptor). Tolazamide has anti-diabetic properties. Tolazamide can lower blood glucose in sulfonylurea class. Tolazamide decreases insulin dose while continuing to maintain adequate metabolic control. Tolazamide is able to improve or normalize hyperglycemia and HbA.
    Tolazamide (Standard)
  • HY-106577S
    Cibenzoline-d4
    Cibenzoline-d4 (Cifenline-d4) is deuterium labeled Cibenzoline. Cibenzoline is a class Ia antiarrhythmic active molecule with low anticholinergic activity. Cibenzoline is a KATP channel inhibitor, acting through the pore forming subunit Kir6.2, with an IC50 of 22.2 μM. Cibenzoline inhibits IKr and IKs currents with IC50 values of 8.8 μM and 12.3 μM, respectively. Cibenzoline is used in the study of cardiac diseases. In addition, Cibenzoline can induce hypoglycemia.
    Cibenzoline-d<sub>4</sub>
  • HY-B1236R
    Sulfacarbamide (Standard)
    Sulfacarbamide (Standard) is the analytical standard of Sulfacarbamide. This product is intended for research and analytical applications. Sulfacarbamide is a hypoglycemic active molecule that also acts on the plant nervous system.
    Sulfacarbamide (Standard)
  • HY-174417
    NNRT-IN-10
    		Inhibitor
    NNRT-IN-10 is a potent, selective and orally active non-nucleoside HIV-1 reverse transcriptase (NNRTI) inhibitor with with an EC50 values ranging from 1.16 to 18.3 nM for HIV and its mutant strains. NNRT-IN-10 exhibits good pharmacokinetic properties and favorable safety profiles. NNRT-IN-10 can be used for the study of AIDS, caused by HIV-1.
    NNRT-IN-10
  • HY-129445
    SG-209
    		Activator
    SG-209 is a Nicorandil (HY-B0341) derivative that produces relaxation through potassium channel activation, while this action contributes to the vasodilating action of Nicorandil (HY-B0341) at higher concentrations. SG-209 dilates tracheal smooth muscle and increases tracheal blood flow in anesthetized dogs.
    SG-209
  • HY-B1467R
    Domiphen bromide (Standard)
    		Inhibitor
    Domiphen bromide (Standard) is the analytical standard of Domiphen bromide (HY-B1467). This product is intended for research and analytical applications. Domiphen bromide is a cationic active quaternary ammonium salt and also an inhibitor of HERG channels (IC50: 9 nM), aminopeptidase-like enzymes, Escherichia coli alkaline phosphatase, and α-chymotrypsin. Domiphen bromide has multiple activities such as antibacterial, antimalarial, and disinfectant properties, and it is also a synergist of Colistin (HY-113678). Domiphen bromide can be used as a chemical preservative and a cationic surfactant, and it can also be used in the research of bacterial infectious diseases such as pharyngitis, thrush, and oral ulcers.
    Domiphen bromide (Standard)
  • HY-17398R
    Mitiglinide calcium (Standard)
    		Antagonist
    Mitiglinide (calcium) (Standard) is the analytical standard of Mitiglinide (calcium). This product is intended for research and analytical applications. Mitiglinide Calcium (KAD-1229 anhydrous), an insulinotropic agent, is an ATP-sensitive K+ (KATP) channel antagonist. Mitiglinide Calcium is highly specific to the Kir6.2/SUR1 complex (the pancreatic beta-cell KATP channel). Mitiglinide Calcium can be used for the research of type 2 diabetes.
    Mitiglinide calcium (Standard)
  • HY-D0143A
    Quinine dihydrochloride
    		Inhibitor
    Quinine dihydrochloride is an orally active alkaloid extracted from cinchona bark and can be used in anti-malarial studies. Quinine dihydrochloride is a potassium channel inhibitor that inhibits WT mouse Slo3 (KCa5.1) channel currents evoked by voltage pulses to +100 mV with an IC50 of 169 μM.
    Quinine dihydrochloride
  • HY-121977
    IKs124
    		Inhibitor
    IKs124 is KCNE2/KCNQ1 potassium channel blocker with the with an IC50 of 8 nM. IKs124 can be used for study of peptic ulcers.
    IKs124
  • HY-113066AR
    Guanosine 5'-diphosphate disodium salt (Standard)
    		Activator
    Guanosine 5'-diphosphate (disodium salt) (Standard) is the analytical standard of Guanosine 5'-diphosphate (disodium salt). This product is intended for research and analytical applications. Guanosine 5'-diphosphate (GDP) disodium salt, a purine nucleoside diphosphate, is interconverted to guanosine by the action of exonucleotidase and phosphorylation of nucleoside to guanine. Guanosine 5'-diphosphate disodium salt activates adenosine 5'-triphosphate-sensitive K+ channel and is used to study the kinetics and characteristics of GTPases such as those associated with G-protein coupled receptors (GPCR). Guanosine 5'-diphosphate disodium salt is a potential iron mobilizer, which prevents the Hepcidin (HY-P70400)-ferroportin interaction and modulates the interleukin-6 (IL-6)/stat-3 pathway. Elevated levels of guanosine 5’-diphosphate are associated with the pathogenesis of neurological diseases. Guanosine 5'-diphosphate disodium salt is promising for the research of inflammation, such as anemia of inflammation (AI).
    Guanosine 5'-diphosphate disodium salt (Standard)
  • HY-15565R
    APD668 (Standard)
    		Inhibitor
    APD668 (Standard) is the analytical standard of APD668. This product is intended for research and analytical applications. APD668 is a potent, selective and orally active agonist of G-protein coupled receptor GPR119, with EC50s of 2.7 nM and 33 nM for hGPR119 and rGPR119, respectively. APD668 shows no significant inhibition of any of the five major CYP isoforms with the exception of CYP2C9 (Ki=0.1 μM). APD668 can be used for the research of steatohepatitis and diabetes.
    APD668 (Standard)
  • HY-A0236AR
    Aprindine hydrochloride (Standard)
    		Inhibitor
    Aprindine (hydrochloride) (Standard) is the analytical standard of Aprindine (hydrochloride). This product is intended for research and analytical applications. Aprindine hydrochloride is a class I-b anti-arrhythmic agent and a hERG channel blocker with an IC50 of 0.23 μM. Aprindine hydrochloride has inhibitory effects on Na+/Ca2+ exchanger currents, which is partly responsible for their antiarrhythmic and cardioprotective effects. Aprindine hydrochloride is widely used for trial and ventricular tachyarrhythmias research research.
    Aprindine hydrochloride (Standard)
  • HY-17504BR
    Rosuvastatin Sodium (Standard)
    		Inhibitor
    Rosuvastatin (Sodium) (Standard) is the analytical standard of Rosuvastatin (Sodium). This product is intended for research and analytical applications. Rosuvastatin Sodium is a competitive HMG-CoA reductase (HMGCR) inhibitor, with an IC50 of 11 nM. Rosuvastatin Sodium potently blocks hERG current with an IC50 of 195 nM. Rosuvastatin Sodium reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin Sodium effectively lowers low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
    Rosuvastatin Sodium (Standard)
  • HY-10015R
    PAP-1 (Standard)
    		Inhibitor
    PAP-1 (Standard) is the analytical standard of PAP-1. This product is intended for research and analytical applications. PAP-1 (5-(4-Phenoxybutoxy)psoralen) is a potent, selective, and orally active Kv1.3 blocker (EC50=2 nM). PAP-1 blocks Kv1.3 in a use-dependent manner and acts by preferentially binding to the C-type inactivated state of the channel. PAP-1 exhibits 23-fold selectivity over Kv1.5 (EC50=45 nM), and further displays 33- to 125-fold selectivity over all other Kv1-family channels. PAP-1 does not exhibit cytotoxic or phototoxic effects.
    PAP-1 (Standard)
  • HY-107036
    BMS-394136
    		Inhibitor
    BMS-394136 (compound 1) is a potent inhibitor of Kv 1.5, with an IC50 of 0.05 μM. BMS-394136 is a selective IKur inhibitor. BMS-394136 dose-dependently prolongs atrial effective refractory period (AERP) and action potential duration (APD) without effecting ventricular effective refractory period (VERP). BMS-394136 can be used for acute atrial ischemia research.
    BMS-394136
Cat. No. Product Name / Synonyms Application Reactivity