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-19216
    KR-30450
    		Activator
    KR-30450 (SKP 450) is a potent K+ATP opener, and a potassium channel activator. KR-30450 exerts more potent cardioprotective effects than Lemakalim (HY-14255). KR-30450 significantly improves reperfusion cardiac function. KR-30450 significantly attenuates reperfusion contracture and lactate dehydrogenase release.
    KR-30450
  • HY-B0682AR
    Mitiglinide calcium hydrate (Standard)
    		Antagonist
    Mitiglinide (calcium hydrate) (Standard) is the analytical standard of Mitiglinide (calcium hydrate). This product is intended for research and analytical applications. Mitiglinide calcium hydrate (KAD-1229), an insulinotropic agent, is an ATP-sensitive K+ (KATP) channel antagonist. Mitiglinide calcium hydrate is highly specific to the Kir6.2/SUR1 complex (the pancreatic beta-cell KATP channel). Mitiglinide Calcium hydrate can be used for the research of type 2 diabetes.
    Mitiglinide calcium hydrate (Standard)
  • HY-10562AR
    Ketanserin tartrate (Standard)
    		Inhibitor
    Ketanserin (tartrate) (Standard) is the analytical standard of Ketanserin (tartrate). This product is intended for research and analytical applications. Ketanserin (R41468) tartrate is a selective 5-HT2 receptor antagonist. Ketanserin tartrate also blocks hERG current (IhERG) in a concentration-dependent manner (IC50=0.11 μM).
    Ketanserin tartrate (Standard)
  • HY-110011R
    Cromakalim (Standard)
    Cromakalim (Standard) is the analytical standard of Cromakalim. This product is intended for research and analytical applications. Cromakalim is a potassium channel opener. Cromakalim can be used as a bronchodilator in asthma. Cromakalim inhibits the spontaneous tone of human isolated bronchi in a concentration-related manner being nearly as effective as isoprenaline or theophylline.
    Cromakalim (Standard)
  • HY-B0433AR
    Quinine hydrochloride dihydrate (Standard)
    		Inhibitor
    Quinine (hydrochloride dihydrate) (Standard) is the analytical standard of Quinine (hydrochloride dihydrate). This product is intended for research and analytical applications. Quinine hydrochloride dihydrate (Qualaquin) is an orally active and can be used in anti-malarial studies. Quinine hydrochloride dihydrate 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 hydrochloride dihydrate (Standard)
  • HY-122104
    UCL-1848 TFA
    		Inhibitor
    UCL-1848 TFA is a hSK1 blocker with an IC50 value of 1.1 nM. hSK1 is a small conductance calcium-activated potassium channel.
    UCL-1848 TFA
  • HY-N1504R
    Loureirin B (Standard)
    		Inhibitor
    Loureirin B (Standard) is the analytical standard of Loureirin B. This product is intended for research and analytical applications. Loureirin B, a flavonoid extracted from Dracaena cochinchinensis, is an inhibitor of plasminogen activator inhibitor-1 (PAI-1), with an IC50 of 26.10 μM; Loureirin B also inhibits KATP, the phosphorylation of ERK and JNK, and has anti-diabetic activity.
    Loureirin B (Standard)
  • HY-B1302R
    Quinidine hydrochloride monohydrate (Standard)
    		Inhibitor
    Quinidine hydrochloride monohydrate (Standard) is the analytical standard of Quinidine hydrochloride monohydrate. This product is intended for research and analytical applications. Quinidine hydrochloride monohydrate is an anti-arrythmic agent which is also a potent blocker of K+ channel with an IC50 of 19.9 μM.
    Quinidine hydrochloride monohydrate (Standard)
  • HY-14286R
    Levosimendan (Standard)
    		Activator
    Levosimendan (Standard) is the analytical standard of Levosimendan. This product is intended for research and analytical applications. Levosimendan (Simsndan; OR-1259) is a calcium sensitiser used in the management of acutely decompensated congestive heart failure.
    Levosimendan (Standard)
  • HY-106017
    Nerispirdine
    		Inhibitor
    Nerispirdine is an ion channel inhibitor with IC50s of 3.6, 3.7 and 11.9 μM against K(v)1.1, K(v)1.2 and voltage-dependent Na(+) channel, respectively. Nerispirdine is a 4-aminopyridine (4-AP, HY-B0604) derivative and can be utilized in research on neurological disorders.
    Nerispirdine
  • HY-127019R
    Nigericin (Standard)
    		Activator
    Nigericin (Standard) is the analytical standard of Nigericin (HY-127019). This product is intended for research and analytical applications. Nigericin is an antibiotic derived from Streptomyces hygroscopicus that act as a K+/H+ ionophore, promoting K+/H+ exchange across mitochondrial membranes. Nigericin is a NLRP3 activator. Nigericin shows promising anti-cancer activities through decreasing intracellular pH (pHi), and inactivation of Wnt/β-catenin signals. Nigericin induces pyroptosis through caspase 1/GSDMD in TNBC.
    Nigericin (Standard)
  • HY-115014
    Cibenzoline succinate
    		Inhibitor
    Cibenzoline succinate (Cifenline succinate) is the succinate form of Cibenzoline (HY-106577). Cibenzoline succinate is an inhibitor for ATP-sensitive potassium (KATP) channel by affecting the pore-forming Kir6.2 subunit with IC50 of 22.2 µM. Cibenzoline succinate affects insulin secretion and exhibits antiarrhythmic and antidiabetic activities.
    Cibenzoline succinate
  • HY-118843
    Lombazole
    Lombazole is an antimicrobial compound with activity that inhibits cell membrane synthesis. Lombazole had little effect on K+ permeability in S. aureus. Lombazole inhibited only de novo synthesis of cell enclosure in S. aureus, and this effect occurred before growth was affected. The main effect of lombazole was through inhibition of lipid synthesis. Lombazole may have an effect on key steps in lipid biosynthesis, as inferred from the lack of changes in lipid patterns after treatment. Lombazole also inhibited the sterol C-14 demethylation step in Candida albicans.
    Lombazole
  • HY-N0267R
    Hypaconitine (Standard)
    		Inhibitor
    Hypaconitine (Standard) is the analytical standard of Hypaconitine. This product is intended for research and analytical applications. Hypaconitine inhibits the KCNH2 current with an IC50 of 8.1 nM, and exhibits cardiotoxicity. Hypaconitine inhibits TGF-β1-induced epithelial-mesenchymal transition (EMT) in A549 cell through the inhibition of NF-κB nuclear translocation. Hypaconitine acts as the neuromuscular blocker. Hypaconitine is orally active.
    Hypaconitine (Standard)
  • HY-12533A
    Disopyramide phosphate
    		Inhibitor 99.85%
    Disopyramide phosphate is a class IA antiarrhythmic agent with efficacy in ventricular and atrial arrhythmias. Disopyramide phosphate blocks the fast inward sodium current of cardiac muscle and prolongs the duration of cardiac action potentials. Disopyramide phosphate inhibits HERG encoded potassium channels. Disopyramide phosphate also exhibits complex protein binding, and has a potent negative inotropic action.
    Disopyramide phosphate
  • HY-B0122SS1
    Topiramate-13C6-1
    		Activator
    Topiramate-13C6-1 (McN 4853-13C6-1; RWJ 17021-13C6-1) is 13C-labeled Topiramate (HY-B0122).
    Topiramate-<sup>13</sup>C<sub>6</sub>-1
  • HY-14607
    Besipirdine hydrochloride
    		Inhibitor
    Besipirdine (hydrochloride) is a potassium channel blocker with cholinergic and adrenergic activity. The cholinergic activity of Besipirdine (hydrochloride) involves stimulating phosphatidylinositol turnover and reducing potassium currents. The adrenergic activity of Besipirdine (hydrochloride) involves stimulating norepinephrine release, which is attributed to the inhibition of presynaptic α2-adrenergic receptors and the inhibition of norepinephrine uptake. Besipirdine (hydrochloride) may be used in research for Alzheimer's disease.
    Besipirdine hydrochloride
  • HY-115823
    ztz240
    ztz240 is a chemical modulator of voltage-gated potassium channel Kv7 (KCNQ) (KCNQ2 and 3: EC50=6.1 μM; KCNQ4: EC50=12.2 μM). ztz240 can be used in analgesia and anti-epileptic research.
    ztz240
  • HY-15643
    LY 303511
    		Inhibitor
    LY303511 is a structural analogue of LY294002. LY303511 does not inhibit PI3K. LY303511 enhances TRAIL sensitivity of SHEP-1 neuroblastoma cells. LY303511 reversibly blocks K+ currents (IC50=64.6±9.1 μM) in MIN6 insulinoma cells.
    LY 303511
  • HY-126936
    MSD-D
    		Inhibitor
    MSD-D is a potent and frequency-dependent Kv1.5 channel inhibitor with an IC50 value of 0.5 μM. MSD-D is promising for research of atrial-selective class III antiarrhythmics.
    MSD-D
Cat. No. Product Name / Synonyms Application Reactivity