2. Signaling Pathways
  3. Membrane Transporter/Ion Channel
  4. Potassium Channel
  5. Potassium Channel Inhibitor

Potassium Channel Inhibitor

Potassium Channel Inhibitors (636):

Cat. No. Product Name Effect Purity
  • HY-100545
    BAPTA-AM
    		Inhibitor 99.68%
    BAPTA-AM is a well-known membrane permeable Ca2+ chelator. BAPTA-AM inhibits hERG channels, hKv1.3 and hKv1.5 channels in HEK 293 cells with IC50s of 1.3 μM, 1.45 μM and 1.23 μM, respectively.
  • HY-P3071A
    ShK toxin TFA
    		Inhibitor
    ShK toxin TFA (Stichodactyla helianthus neurotoxin TFA) is a neurotoxin. ShK toxin TFA blocks voltage-dependent potassium channel (Kv1.3 channel). ShK toxin TFA can be isolated from the whole body extract of the Caribbean sea anemone (Stichodactylu helianthus). ShK toxin TFA competes with dendrotoxin I and α-dendrotoxin for binding to synaptosomal membranes of rat brain, facilitates acetylcholine release. ShK toxin TFA suppresses K+ currents in cultured rat dorsal root ganglion neurons. ShK toxin TFA also inhibits T lymphocyte proliferation.
  • HY-17504
    Rosuvastatin Calcium
    		Inhibitor 99.77%
    Rosuvastatin Calcium is a competitive HMG-CoA reductase (HMGCR) inhibitor, with an IC50 of 11 nM. Rosuvastatin Calcium potently blocks hERG current with an IC50 of 195 nM. Rosuvastatin Calcium reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin Calcium effectively lowers low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
  • HY-W728531
    Ac4ManNAz
    		Inhibitor 99.52%
    Ac4ManNAz can be taken up by cells and is an azide-containing metabolic glycoprotein labeling reagent that selectively modifies proteins. Commonly used for cell labeling, tracking and proteomic analysis. Ac4ManNAz contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. Ac4ManNAz can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
  • HY-19545A
    SCH-23390 hydrochloride
    		Inhibitor 99.83%
    SCH-23390 hydrochloride (R-(+)-SCH-23390 hydrochloride) is a potent and selective dopamine D1-like receptor antagonist with Kis of 0.2 nM and 0.3 nM for the D1 and D5 receptor, respectively. SCH-23390 hydrochloride is a potent and high efficacy human 5-HT2C receptor agonist with a Ki of 9.3 nM. SCH-23390 hydrochloride also binds with high affinity to the 5-HT2 and 5-HT1C receptors. SCH-23390 hydrochloride inhibits G protein-coupled inwardly rectifying potassium (GIRK) channels with an IC50 of 268 nM.
  • HY-15206
    Glibenclamide
    		Inhibitor 99.83%
    Glibenclamide (Glyburide) is an orally active ATP-sensitive K+ channel (KATP) inhibitor and can be used for the research of diabetes and obesity. Glibenclamide inhibits P-glycoprotein. Glibenclamide directly binds and blocks the SUR1 subunits of KATP and inhibits the cystic fibrosis transmembrane conductance regulator protein (CFTR). Glibenclamide interferes with mitochondrial bioenergetics by inducing changes on membrane ion permeability. Glibenclamide can induce autophagy.
  • HY-B0246
    Carbamazepine
    		Inhibitor 99.95%
    Carbamazepine is an orally active pressure-sensitive sodium ion channel blocker with an IC50 of 131 μM. Carbamazepine blocks voltage gated Na+, Ca2+, and K+ channels, and is also a HDAC inhibitor (IC50: 2 μM). Carbamazepine is an anticonvulsant and can be used for research of epilepsy and neuropathic pain.
  • HY-19620
    Branaplam
    		Inhibitor 98.90%
    Branaplam (LMI070; NVS-SM1) is a highly potent, selective and orally active survival motor neuron-2 (SMN2) splicing modulator with an EC50 of 20 nM for SMN. Branaplam inhibits human-ether-a-go-go-related gene (hERG) with an IC50 of 6.3 μM. Branaplam elevates full-length SMN protein and extends survival in a severe spinal muscular atrophy (SMA) mouse model.
  • HY-N0603
    20(S)-Ginsenoside Rg3
    		Inhibitor 99.82%
    20(S)-Ginsenoside Rg3 is the main component of Panax ginseng C. A. Meyer. Ginsenoside Rg3 inhibits Na+ and hKv1.4 channel with IC50s of 32.2±4.5 and 32.6±2.2 μM, respectively. 20(S)-Ginsenoside Rg3 also inhibits Aβ levels, NF-κB activity, and COX-2 expression.
  • HY-13764
    Tetrandrine
    		Inhibitor 99.90%
    Tetrandrine (NSC-77037; d-Tetrandrine) is a bis-benzyl-isoquinoline alkaloid, which inhibits voltage-gated Ca2+ current (ICa) and Ca2+-activated K+ current.
  • HY-15551
    E-4031
    		Inhibitor 99.40%
    E-4031 is a selective hERG potassium channel blocker for use in class III anti-arrhythmic studies.
  • HY-B2136
    Tannic acid
    		Inhibitor
    Tannic acid is a novel hERG channel blocker with IC50 of 3.4 μM.
  • HY-100912
    W-7 hydrochloride
    		Inhibitor 99.96%
    W-7 hydrochloride is a selective calmodulin antagonist. W-7 hydrochloride inhibits the Ca2+-calmodulin-dependent phosphodiesterase and myosin light chain kinase with IC50 values of 28 μM and 51 μM, respectively. W-7 hydrochloride induces apoptosis and has antitumor and vascular relaxing activity. W-7 hydrochloride is a blocker of Kv4.3 and can be used for research of arrhythmias.
  • HY-B0232
    Dofetilide
    		Inhibitor 98.84%
    Dofetilide (UK 68789), as a class III antiarrhythmic agent, is an orally active, potent and specific IKr blocker. Dofetilide can be used for the research of cardiovascular disease.
  • HY-B1751
    Quinidine (15% dihydroquinidine)
    		Inhibitor 98.36%
    Quinidine (15% dihydroquinidine) is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine can be used for malaria research.
  • HY-14188
    Amiodarone hydrochloride
    		Inhibitor 99.76%
    Amiodarone hydrochloride, a benzofuran-based Class III antiarrhythmic agent, inhibits WT outward ionic current (IhERG) tails with an IC50 of ∼45 nM. Amiodarone hydrochloride induces cell proliferation and myofibroblast differentiation via ERK1/2 and p38 MAPK signaling in fibroblasts. Amiodarone hydrochloride can be used in the research of both supraventricular and ventricular arrhythmias.
  • HY-14187
    Amiodarone
    		Inhibitor 98.32%
    Amiodarone, a benzofuran-based Class III antiarrhythmic agent, inhibits WT outward ionic current (IhERG) tails with an IC50 of ∼45 nM. Amiodarone induces cell proliferation and myofibroblast differentiation via ERK1/2 and p38 MAPK signaling in fibroblasts. Amiodarone can be used in the research of both supraventricular and ventricular arrhythmias.
  • HY-13519
    TRAM-34
    		Inhibitor 99.78%
    TRAM-34 is a highly selective blocker of intermediate-conductance calcium-activated K+ channel (IKCa1) (Kd=20 nM).
  • HY-12532
    Astemizole
    		Inhibitor 99.77%
    Astemizole (R 43512), a second-generation antihistamine agent to diminish allergic symptoms with a long duration of action, is a histamine H1-receptor antagonist, with an IC50 of 4 nM. Astemizole also shows potent hERG K+ channel blocking activity with an IC50 of 0.9 nM. Astemizole has antipruritic effects.
  • HY-10562
    Ketanserin
    		Inhibitor 99.89%
    Ketanserin is a selective 5-HT2 receptor antagonist. Ketanserin also blocks hERG current (IhERG) in a concentration-dependent manner (IC50=0.11 μM).