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Results for "

sinoatrial node

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Calcium Channel (2) Endogenous Metabolite (1) mAChR (1) Potassium Channel (1) Sodium Channel (2)
By Research Areas:	Cardiovascular Disease (6)

Inhibitors & Agonists

Fluorescent Dyes

Peptides

Natural
Products

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-P3269

Calciseptine	Calcium Channel	Cardiovascular Disease
Calciseptine is a natural polypeptide toxin found in the venom of the black mamba snake (Dendroaspis p. polylepis). Calciseptine is a highly effective and selective blocker of the L-type channel of the Cav1.2 subtype, with an IC₅₀ value of 92 nM. Calciseptine has no effect on Cav3.1, Cav2.2, Cav2.1, Cav1.1, voltage-sensitive sodium channels and potassium channels. Calciseptine exhibits negative inotropic and negative relaxant effects on mice, and does not affect heart rate or the action potential of sinoatrial node pacemaker cells. Calciseptine can be used for research on cardiovascular diseases_[1].

HY-151801

DIBA-Cy5	mAChR	Others
DIBA-Cy5 is a fluorescent DIBA antagonist made up be DIBA-alkyne binding Cyanine5 fluorophores (Cy5) and polyethylene glycol (PEG) biomolecules. DIBA-Cy5 can serve as a fluorescent ligand, suitable for probe attachment through click chemistry. DIBA-Cy5 exerts a high binding affinity to type-2 mAChR (M2R) with the K_d value of 1.80 nM, can directly stain M2R receptors in the sinoatrial node of a mouse heart .

HY-105454

Recainam Wy-42362	Sodium Channel	Cardiovascular Disease
Recainam (Wy-42362) is a potent orally active antiarrhythmic agent and a sodium channel inhibitor. Recainam elevates ventricular fibrillation threshold, suppresses induced cardiac dysrhythmias, and may accentuate cardiac tissue refractoriness heterogeneity. Recainam can be used for the research of arrhythmias .

HY-18940

Cilobradine Cilo	Endogenous Metabolite	Cardiovascular Disease
Cilobradine (Cilo) is a HCN channel blocker with heart rate reducing activity. Cilobradine blocks the slow inward current of human HCN1, HCN2, HCN3, and HCN4 channels. Cilobradine has a slightly higher efficiency in blocking endogenous If in mouse sinoatrial node cells (IC50 value is 0.62μM). Cilobradine can dose-dependently reduce the heart rate from 600 to 200 bpm with an ED50 value of 1.2 mg/kg. Cilobradine induces arrhythmias at doses greater than 5 mg/kg, which are characterized by periodic fluctuations between T waves and P waves .

HY-105454A

Recainam hydrochloride Wy-42362 hydrochloride	Sodium Channel	Cardiovascular Disease
Recainam (Wy-42362) hydrochloride is a potent orally active antiarrhythmic agent and a sodium channel inhibitor. Recainam hydrochloride elevates ventricular fibrillation threshold, suppresses induced cardiac dysrhythmias, and may accentuate cardiac tissue refractoriness heterogeneity. Recainam hydrochloride can be used for the research of arrhythmias .

HY-N8421

Tabernanthine	Potassium Channel	Cardiovascular Disease
Tabernanthine is a negative chronotropic and negative inotropic agent that selectively acts on sinoatrial node receptors, regulating heart rhythm and myocardial contractility. Tabernanthine exhibits atropine resistance and direct non-cholinergic binding properties, acting directly on the sinoatrial node rather than relying on vagal nerve or cholinergic pathways to exert its key activity of slowing heart rate and weakening myocardial contractility. Tabernanthine is useful in cardiovascular pharmacology research, particularly in the areas of sinoatrial node function regulation, mechanisms related to bradycardia, and studies of cardiac receptor subtype differences .

HY-P3269A

Calciseptine TFA	Calcium Channel	Cardiovascular Disease
Calciseptine TFA, a polypeptide found in black mamba venom, is a selcetive Cav1.2 L-type calcium channel inhibitor with an IC₅₀ of 92 nM. Calciseptine TFA binds to the pore domain shoulder at repeats III and IV of Cav1.2, stabilizing an inactivated conformation. Calciseptine TFA exhibits negative inotropic and negative relaxant effects on mice, and does not affect heart rate or the action potential of sinoatrial node pacemaker cells. Calciseptine TFA can be used for the research of cardiovascular diseases .

DIBA-Cy5	Fluorescent Dyes
DIBA-Cy5 is a fluorescent DIBA antagonist made up be DIBA-alkyne binding Cyanine5 fluorophores (Cy5) and polyethylene glycol (PEG) biomolecules. DIBA-Cy5 can serve as a fluorescent ligand, suitable for probe attachment through click chemistry. DIBA-Cy5 exerts a high binding affinity to type-2 mAChR (M2R) with the K_d value of 1.80 nM, can directly stain M2R receptors in the sinoatrial node of a mouse heart .

Cat. No.	Product Name	Target	Research Area

HY-P3269

Calciseptine	Calcium Channel	Cardiovascular Disease
Calciseptine is a natural polypeptide toxin found in the venom of the black mamba snake (Dendroaspis p. polylepis). Calciseptine is a highly effective and selective blocker of the L-type channel of the Cav1.2 subtype, with an IC₅₀ value of 92 nM. Calciseptine has no effect on Cav3.1, Cav2.2, Cav2.1, Cav1.1, voltage-sensitive sodium channels and potassium channels. Calciseptine exhibits negative inotropic and negative relaxant effects on mice, and does not affect heart rate or the action potential of sinoatrial node pacemaker cells. Calciseptine can be used for research on cardiovascular diseases_[1].

HY-P3269A

Calciseptine TFA	Calcium Channel	Cardiovascular Disease
Calciseptine TFA, a polypeptide found in black mamba venom, is a selcetive Cav1.2 L-type calcium channel inhibitor with an IC₅₀ of 92 nM. Calciseptine TFA binds to the pore domain shoulder at repeats III and IV of Cav1.2, stabilizing an inactivated conformation. Calciseptine TFA exhibits negative inotropic and negative relaxant effects on mice, and does not affect heart rate or the action potential of sinoatrial node pacemaker cells. Calciseptine TFA can be used for the research of cardiovascular diseases .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N8421

Tabernanthine	Apocynaceae Structural Classification Alkaloids Plants Indole Alkaloids Tabernanthe iboga Baill. Source Classification	Potassium Channel
Tabernanthine is a negative chronotropic and negative inotropic agent that selectively acts on sinoatrial node receptors, regulating heart rhythm and myocardial contractility. Tabernanthine exhibits atropine resistance and direct non-cholinergic binding properties, acting directly on the sinoatrial node rather than relying on vagal nerve or cholinergic pathways to exert its key activity of slowing heart rate and weakening myocardial contractility. Tabernanthine is useful in cardiovascular pharmacology research, particularly in the areas of sinoatrial node function regulation, mechanisms related to bradycardia, and studies of cardiac receptor subtype differences .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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