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-B0232R
    Dofetilide (Standard)
    		Inhibitor
    Dofetilide (Standard) is the analytical standard of Dofetilide. This product is intended for research and analytical applications. 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.
    Dofetilide (Standard)
  • HY-106577A
    (-)-(S)-Cibenzoline
    		Inhibitor
    (-)-(S)-Cibenzoline (Escibenzoline), a S(+)-enantiomer of Cibenzoline, is an antiarrhythmic agent.
    (-)-(S)-Cibenzoline
  • HY-170377
    ER degrader 10
    		Inhibitor
    ER degrader 10 (Compound 51) is a selective, orally active degrader and antagonist for estrogen receptor (ER) with a DC50 of 0.43 nM and an IC50 of 0.56 nM. ER degrader 10 inhibits the proliferation of ER-positive cells with IC50s of 0-15 nM. ER degrader 10 exhibits a weak inhibitory activity against hERG channel with an IC50 >40 μM. ER degrader 10 is blood-brain barrier penetrable with a brain/plasma ratio (Kp) of 3.05. ER degrader 10 exhibits antitumor efficacy in mice model.
    ER degrader 10
  • HY-P2707
    α-Dendrotoxin
    		Inhibitor
    α-Dendrotoxin (α-DTX) is a voltage-gated K+ channel blocker and an acid-sensing ion channel (ASIC) inhibitor. α-Dendrotoxin blocks Kv1.1, Kv1.2, Kv1.6 and D-type (ID) voltage-gated K+ channels, and reversibly inhibits slowly inactivating potassium currents. α-Dendrotoxin induces epilepsy-related behaviors in mice. α-Dendrotoxin can be used in studies related to tonic-clonic seizures.
    α-Dendrotoxin
  • HY-12520B
    (R)-SKF 38393 hydrochloride
    		Inhibitor
    (R)-SKF 38393 ((±)-SKF-38393) hydrochloride is a potent and selective D1 dopamine receptor antagonist. (R)-SKF 38393 hydrochloride inhibits G protein-coupled inwardly rectifying potassium (GIRK) channel.
    (R)-SKF 38393 hydrochloride
  • HY-W010668R
    Quinine sulfate hydrate (Standard)
    		Inhibitor
    Quinine (sulfate hydrate) (Standard) is the analytical standard of Quinine (sulfate hydrate). This product is intended for research and analytical applications. Quinine sulfate hydrate (2:1:4) is an orally active alkaloid extracted from cinchona bark and can be used in anti-malarial studies. Quinine sulfate hydrate (2:1:4) 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 sulfate hydrate (Standard)
  • HY-170832
    Menin–KMT2A-IN-1
    		Inhibitor
    Menin–KMT2A-IN-1 (Compound 20) is the inhibitor for menin–KMT2A that binds to menin with an IC50 of 8 nM, and inhibits the interaction between menin and lysine methyltransferase 2A (KMT2A). Menin–KMT2A-IN-1 inhibits hERG with an IC50 of 65 μM. Menin–KMT2A-IN-1 inhibits cell MV4-11 with an IC50 of 74 nM. Menin–KMT2A-IN-1 exhibits good pharmacokinetic characteristics in CD-1 mouse with an orally bioavailability of 74%.
    Menin–KMT2A-IN-1
  • HY-117174
    L-735821
    		Inhibitor
    L-735821 is a Potassium channel blocker and an antagonist of IKs. L-735821 inhibits the KCNQ1 channel activity with an EC50 of 0.08 μM. L-735821 can increase IKs and IKr current-voltage relations in rabbit ventricular myocytes. L-735821 fully abolishes IKs in isolated human ventricular myocytes at 100 nmol/L. L-735821 can easily enter single myocytes.
    L-735821
  • HY-B1430R
    Butamben (Standard)
    		Inhibitor
    Butamben (Standard) is the analytical standard of Butamben. This product is intended for research and analytical applications. Butamben (Butyl 4-aminobenzoate) results in long-lasting relief from pain, without impairing motor function or other sensory functions.
    Butamben (Standard)
  • HY-147256
    Cavutilide
    		Inhibitor
    Cavutilide (Niferidil (free base)) is a class III antiarrhythmic agent that inhibits hERG K+ channel. Cavutilide has the potential for the study of persistent atrial fibrillation.
    Cavutilide
  • HY-B1751E
    Quinidine polygalacturonate
    		Inhibitor
    Quinidine polygalacturonate is an antiarrhythmic agent. Quinidine polygalacturonate is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine polygalacturonate is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine polygalacturonate can be used for malaria research.
    Quinidine polygalacturonate
  • HY-108400
    SCH-23390 maleate
    		Inhibitor
    SCH-23390 maleate (R-(+)-SCH-23390 maleate) 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 maleate is a potent and high efficacy human 5-HT2C receptor agonist with a Ki of 9.3 nM. SCH-23390 maleate also binds with high affinity to the 5-HT2 and 5-HT1C receptors. SCH-23390 maleate inhibits G protein-coupled inwardly rectifying potassium (GIRK) channels with an IC50 of 268 nM.
    SCH-23390 maleate
  • HY-14187S1
    Amiodarone-d5 hydrochloride
    		Inhibitor
    Amiodarone-d5 hydrochloride is deuterated labeled Amiodarone (HY-14187). Amiodarone is an antiarrhythmic agent for inhibition of ATP-sensitive potassium channel with an IC50 of 19.1 μM.
    Amiodarone-d<sub>5</sub> hydrochloride
  • HY-108578
    RuBi-4AP
    		Inhibitor
    RuBi-4AP, a derivative of 4-aminopyridine (4AP; HY-B0604), is a caged Kv channel blocker. RuBi-4AP contains a photolabile protecting group, allowing its effect to be controlled precisely in both space and time with light. RuBi-4AP can be used for the research of neuronal excitability, synaptic transmission, and signal propagation.
    RuBi-4AP
  • HY-B0267AR
    Oxybutynin chloride (Standard)
    		Inhibitor
    Oxybutynin (chloride) (Standard) is the analytical standard of Oxybutynin (chloride). This product is intended for research and analytical applications. Oxybutynin chloride is an oral active and competitive mAChR antagonist with Kis of 14.3 and 5.55 nM for specific [3H]NMS binding in the mouse bladder and cerebral cortex, respectively. Oxybutynin chloride inhibits vascular Kv channels in a manner independent of anticholinergic effect, with an IC50 value of 11.51 μM. Oxybutynin chloride reduces muscle spasm in the bladder and urinary tract, can be used in study of overactive bladder syndrome (OAB). Oxybutynin (chloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Oxybutynin chloride (Standard)
  • HY-B0563BS
    Ropivacaine-d7 hydrochloride
    		Inhibitor
    Ropivacaine-d7 hydrochloride is a deuterium labeled Ropivacaine (hydrochloride) (HY-B0563B). Ropivacaine hydrochloride 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 neuropathic pain management in vivo.
    Ropivacaine-d<sub>7</sub> hydrochloride
  • HY-P5871
    Jingzhaotoxin-XII
    		Inhibitor
    Jingzhaotoxin-XII (JzTx-XII) is a specific Kv4.1 channel inhibitor with an IC50 of 0.363 μM. Jingzhaotoxin-XII interacts with the channels by modifying the gating behavior.
    Jingzhaotoxin-XII
  • HY-128547
    Cetiedil citrate
    		Inhibitor
    Cetiedil citrate is a vasodilator and antihemolytic agent. Cetiedil citrate exerts anti-sickle cell anemia effects by blocking Ca2+-activated K+ channels (Gardos/KCa3.1). Cetiedil citrate is a muscarinic receptor antagonist that inhibits calcium-dependent release of acetylcholine (ACh) from mediated reconstituted proteoliposomes, with a Ki value of 5 μM. Cetiedil citrate possesses analgesic, spasmolytic and local anesthetic activities. Cetiedil citrate can be used in research related to ischemic leg pain caused by vascular diseases and sickle cell disease.
    Cetiedil citrate
  • HY-17504D
    (3S,5R)-Rosuvastatin
    		Inhibitor
    (3S,5R)-Rosuvastatin is the (3S,5R)-enantiomer of Rosuvastatin. Rosuvastatin is a competitive HMG-CoA reductase inhibitor with an IC50 of 11 nM. Rosuvastatin potently blocks human ether-a-go-go related gene (hERG) current with an IC50 of 195 nM. Rosuvastatin reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin is very effective in lowering low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
    (3S,5R)-Rosuvastatin
  • HY-110076
    VU590 dihydrochloride
    		Inhibitor
    VU590 dihydrochloride is a potent and moderately selective ROMK (Kir1.1) inhibitor, with an IC50 of 290 nM. VU590 also inhibits Kir7.1, with an IC50 of 8 μM. VU590 dihydrochloride is not a good probe of ROMK function in the kidney.
    VU590 dihydrochloride
Cat. No. Product Name / Synonyms Application Reactivity