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-120375
    LUF7346
    		Inhibitor
    LUF7346 is a potent Kv11.1 (hERG) channel negative allosteric modulator, with an IC50 of 35.6 ± 3.2 nM.
    LUF7346
  • HY-B1482
    Mesoridazine benzenesulfonate
    		Antagonist
    Mesoridazine (TPS-23) benzenesulfonate, a metabolite of Thioridazine (HY-B0965A), acts as an orally active phenothiazine antipsychotic agent. Mesoridazine benzenesulfonate 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 benzenesulfonate can be used for the research of schizophrenia, as well as certain other psychiatric disorders.
    Mesoridazine benzenesulfonate
  • HY-P3898
    Tyr-Somatostatin-28
    Tyr-Somatostatin-28 is a somatostatin that adds a Tyrosine amino acid to Somatostatin-28.
    Tyr-Somatostatin-28
  • HY-B0480R
    Brompheniramine (maleate) (Standard)
    		Inhibitor
    Brompheniramine (maleate) (Standard) is the analytical standard of Brompheniramine (maleate). This product is intended for research and analytical applications. Brompheniramine ((±)-Brompheniramine) maleate is a potent and orally active antihistamine of the alkylamine class. Brompheniramine maleate is a selective histamine H1 receptor antagonist with a Kd of 6.06 nM. Brompheniramine maleate can block the hERG channels, calcium channels, and sodium channels with IC50s of 0.90 μM, 16.12 μM and 21.26 μM, respectively. Brompheniramine maleate has anticholinergic, antidepressant and anesthetic properties and can be used for allergic rhinitis research.
    Brompheniramine (maleate) (Standard)
  • HY-162555
    BMS-986308
    		Inhibitor
    BMS-986308 is a selective and orally active renal outer medullary potassium (ROMK) channel inhibitor. BMS-986308 is selective for ROMK over hERG. BMS-986308 can be used for heart failure research.
    BMS-986308
  • HY-129088
    HUP30
    		Activator 99.68%
    HUP30 is a vasodilating agent. HUP30 stimulates soluble guanylyl cyclase, activate K+ channels, and blocks extracellular Ca2+ influx.
    HUP30
  • HY-163735
    BA6b9
    		Inhibitor
    BA6b9 is an allosteric inhibitor of SK4 channels that targets the CaM–PIP2-binding domain with a IC50 value of 8.6 µM (WT SK4). BA6b9 inhibits SK4 channels by interacting with two specific residues, Arg191 and His192 in the S4–S5 linker. BA6b9 significantly prolongs atrial and atrioventricular effective refractory period (ERP) and reduces atrial fibrillation (AF) induction in rat isolated hearts, which has the potential to be used for the research of arrhythmia .
    BA6b9
  • HY-114540
    CP-339818
    CP-339818 is a non-peptide drug with potent Kv1.3 channel blocking activity. CP-339818 is able to effectively inhibit the activation of human T cells. By selectively blocking Kv1.3, CP-339818 is of great value in immune system research. The drug inhibits the C-type inactivated state of Kv1.3 channels in a use-dependent manner. CP-339818 has significantly weaker blocking effects on Kv1.1, Kv1.2, Kv1.5, Kv1.6, Kv3.1-4, and Kv4.2 channels, and only shows some inhibition on the Kv1.4 channel.
    CP-339818
  • HY-P5916
    VSTx-3
    		Antagonist
    VSTx-3 is a KV channel blocker. VSTx-3 is demonstrated to be a potent, TTX-sensitive sodium channel blocker and especially, a potent blocker of NaV1.8 channels (IC50 0.19 μM for hNaV1.3, 0.43 μM for hNaV1.7 and 0.77 μM for hNaV1.8 channels).
    VSTx-3
  • HY-W654013
    Minocycline-d7
    		Activator
    Minocycline-d7 is deuterium labeled Minocycline. Minocycline is an orally active, potent and BBB-penetrated semi-synthetic tetracycline antibiotic. Minocycline is a hypoxia-inducible factor (HIF)-1α inhibitor. Minocycline shows anti-cancer, anti-inflammatory, and glutamate antagonist effects. Minocycline reduces glutamate neurotransmission and shows neuroprotective properties and antidepressant effects. Minocycline inhibits bacterial protein synthesis through binding with the 30S subunit of the bacterial ribosome, resulting in a bacteriostatic effect.
    Minocycline-d<sub>7</sub>
  • HY-117160
    4-trans-Hydroxy-glibenclamide
    		Inhibitor
    rac-trans-4-hydroxy Glyburide is an active metabolite of the SUR1/Kir6.2 sulfonylurea inhibitor glyburide (HY-15206). It is formed from glyburide by the cytochrome P450 (CYP) isoforms CYP2C8 and CYP2C9. rac-trans-4-hydroxy Glyburide inhibits glyburide binding to rat brain synaptosomes at the high and low affinity sites of SUR1/Kir6.2 with IC50 values of 0.95 and 100 nM, respectively.
    4-trans-Hydroxy-glibenclamide
  • HY-B0551AR
    Doxapram (hydrochloride hydrate) (Standard)
    		Inhibitor
    Doxapram (hydrochloride hydrate) (Standard) is the analytical standard of Doxapram (hydrochloride hydrate). This product is intended for research and analytical applications. 0
    Doxapram (hydrochloride hydrate) (Standard)
  • HY-14290R
    Pinacidil (Standard)
    		Activator
    Pinacidil (Standard) is the analytical standard of Pinacidil. This product is intended for research and analytical applications. Pinacidil is a potent activator of ATP-sensitive potassium channel. Pinacidil is an antihypertensive agent hyperpolarizes vascular smooth muscle by opening K+ channels. Pinacidil enhances K+-efflux in smooth muscle. Pinacidil has vasorelaxant properties. Pinacidil is able to inhibit spontaneous tone and of reducing agonist induced contractions. Pinacidil can be studied in research area such as cardiovascular diseases.
    Pinacidil (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-106577R
    Cibenzoline (Standard)
    Cibenzoline (Standard) is the analytical standard of Cibenzoline. This product is intended for research and analytical applications. 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 (Standard)
  • HY-101433R
    N-Acetylprocainamide hydrochloride (Standard)
    		Inhibitor
    N-Acetylprocainamide (hydrochloride) (Standard) is the analytical standard of N-Acetylprocainamide (hydrochloride). This product is intended for research and analytical applications. N-Acetylprocainamide (Acecainide) hydrochloride is a class III antiarrhythmic, which blocks K+ channels.
    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-100607AR
    Landiolol hydrochloride (Standard)
    		Control
    Landiolol (ONO1101) hydrochloride (Standard) is the analytical standard of Landiolol hydrochloride (HY-100607A). This product is intended for research and analytical applications. Landiolol (ONO1101) hydrochloride is a highly selective, ultra-short-acting competitive inhibitor of β1 adrenergic receptors. Landiolol hydrochloride specifically blocks cardiac β1 receptors, reducing heart rate and myocardial oxygen consumption. Landiolol hydrochloride inhibits TNF-α-induced excessive mitochondrial oxygen consumption and reactive oxygen species production in a sepsis model, alleviating renal injury. Landiolol hydrochloride has little effect on cardiac ion channels (such as L-type calcium current and inward rectifier potassium current) and has a weak negative inotropic effect. Landiolol hydrochloride can be used for perioperative tachycardia control and protection studies of sepsis-related acute kidney injury.
    Landiolol hydrochloride (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
Cat. No. Product Name / Synonyms Application Reactivity