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bradycardia

" in MedChemExpress (MCE) Product Catalog:

By Targets:	5-HT Receptor (5) Adenosine Receptor (2) Adrenergic Receptor (17) Biochemical Assay Reagents (1) Cholinesterase (ChE) (5) Dopamine Receptor (3) Drug Derivative (1) Endogenous Metabolite (7) Environmental Pollutants (1) GABA Receptor (1) Histamine Receptor (1) Isotope-Labeled Compounds (4) LPL Receptor (3) mAChR (15) Opioid Receptor (1) Potassium Channel (2) Reference Standards (10) Serotonin Transporter (1)
By Research Areas:	Cancer (5) Cardiovascular Disease (36) Endocrinology (8) Inflammation/Immunology (3) Neurological Disease (21)

By Targets:

5-HT Receptor (5)

Adenosine Receptor (2)

Adrenergic Receptor (17)

Biochemical Assay Reagents (1)

Cholinesterase (ChE) (5)

Dopamine Receptor (3)

Drug Derivative (1)

Endogenous Metabolite (7)

Environmental Pollutants (1)

GABA Receptor (1)

Histamine Receptor (1)

Isotope-Labeled Compounds (4)

LPL Receptor (3)

mAChR (15)

Opioid Receptor (1)

Potassium Channel (2)

Reference Standards (10)

Serotonin Transporter (1)

By Research Areas:

Cancer (5)

Cardiovascular Disease (36)

Endocrinology (8)

Inflammation/Immunology (3)

Neurological Disease (21)

Inhibitors & Agonists

Natural
Products

Isotope-Labeled Compounds

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-B0468

Isoprenaline hydrochloride Maximum Cited Publications 87 Publications Verification Isoproterenol hydrochloride	Adrenergic Receptor Endogenous Metabolite	Cardiovascular Disease Endocrinology
Isoprenaline (Isoproterenol) hydrochloride is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-B1205

Atropine 20+ Cited Publications Tropine tropate; DL-Hyoscyamine	Environmental Pollutants Endogenous Metabolite mAChR	Cardiovascular Disease Neurological Disease Cancer
Atropine (Tropine tropate) is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M₄ and Chicken mAChR M₄, respectively. Atropine inhibits ACh-induced relaxations in human pulmonary veins. Atropine can be used for research of anti-myopia and bradycardia .

HY-108353

Isoprenaline Maximum Cited Publications 87 Publications Verification	Adrenergic Receptor Endogenous Metabolite	Cardiovascular Disease Endocrinology
Isoprenaline is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-B0394

Atropine sulfate monohydrate 20+ Cited Publications Tropine tropate sulfate monohydrate; DL-Hyoscyamine sulfate monohydrate	mAChR	Cardiovascular Disease Neurological Disease Cancer
Atropine (Tropine tropate) sulfate monohydrate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M₄ and Chicken mAChR M₄, respectively. Atropine sulfate monohydrate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate monohydrate can be used for research of anti-myopia and bradycardia .

HY-B1277

Trihexyphenidyl hydrochloride 3 Publications Verification	mAChR Cholinesterase (ChE)	Neurological Disease
Trihexyphenidyl hydrochloride is a selective and orally active M₁ muscarinic receptor antagonist with an IC₅₀ of 3.7 nM for rat cerebral cortex M1 muscarinic receptors. Trihexyphenidyl hydrochloride modulates cholinergic activity, countering acetylcholine supersensitivity in neural pathways. Trihexyphenidyl hydrochloride improves movement disorder, inhibits McN-A-343 (HY-107648)-induced pressor responses, vagally-induced bradycardia and vasodilatation. Trihexyphenidyl hydrochloride can be used for the research of Parkinson's disease. .

HY-B1205A

Atropine sulfate 20+ Cited Publications Tropine tropate sulfate; DL-Hyoscyamine sulfate; Sulfatropinol	mAChR	Cardiovascular Disease Neurological Disease Cancer
Atropine (Tropine tropate) sulfate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M₄ and Chicken mAChR M₄, respectively. Atropine sulfate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate can be used for research of anti-myopia and bradycardia .

HY-16734A

Amiselimod hydrochloride MT-1303 hydrochloride	LPL Receptor	Cardiovascular Disease Inflammation/Immunology
Amiselimod (MT-1303) hydrochloride is converted to its active metabolite Amiselimod phosphate by sphingosine kinases in vivo. Amiselimod hydrochloride is an orally active and high selectivity sphingosine 1-phosphate receptor-1 (S1P1) agonist, designed to reduce the bradycardia effects associated with fingolimod and other S1P receptor modulators. Amiselimod hydrochloride inhibits chronic colitis via inhibiting infiltration of colitogenic Th1 and Th17 cells into the colon. Amiselimod hydrochloride inhibits lupus nephritis by reducing the infiltration of autoreactive T cells into the kidneys. Amiselimod hydrochloride is promising for research of autoimmune diseases .

HY-B1470

Azaperone R-1929	Dopamine Receptor Adrenergic Receptor	Neurological Disease
Azaperone is an antagonist of dopamine D2 receptor (Dopamine D2 Receptor) and α-adrenergic receptor (AR). Azaperone reduces vasomotor tone, mean arterial pressure, hematocrit, hemoglobin concentration, and etorphine-induced duration; induces transient tachycardia followed by bradycardia, splenic uptake of red blood cells, and sedation; alters animal behaviors; and produces sedation with distinct onset and duration in foals. Azaperone is used for sedation and tranquilization in various animals to reduce stress and aggressive behaviors, and serves as a preanesthetic agent .

HY-A0066A

Tolazoline hydrochloride Imidaline hydrochloride; NSC35110 hydrochloride	Adrenergic Receptor	Cardiovascular Disease Endocrinology
Tolazoline hydrochloride (Imidaline hydrochloride) is an α-adrenergic receptor antagonist. Tolazoline hydrochloride inhibits Noradrenaline (HY-13715)-induced cell contraction, modulates vascular resistance, increases arterial pressure, and reverses bradycardia and tachypnea. Tolazoline hydrochloride can be used to study erectile dysfunction, α₂-adrenergic receptor agonist-related poisoning, and skin vascular disease research .

HY-116294A

Methoctramine tetrahydrochloride 1 Publications Verification	mAChR	Cardiovascular Disease
Methoctramine tetrahydrochloride is a potent and cardioselectivity antagonist of M2 muscarinic receptor. Methoctramine tetrahydrochloride can inhibit Muscarine (HY-121404)-induced bradycardia in vivo. Methoctramine tetrahydrochloride can be used in the study of cardiovascular diseases .

HY-107915

Levonordefrin (-)-Cobefrin; (-)-α-Methylnoradrenaline; (-)-Nordefrin	Adrenergic Receptor	Cardiovascular Disease
Levonordefrin ((-)-Cobefrin; (-)-α-Methylnoradrenaline; (-)-Nordefrin) is an α-adrenergic receptor agonist with blood pressure regulatory properties. Levonordefrin is a key metabolite responsible for the hypotensive effect of α-methyldopa. By stimulating central α-adrenergic receptors in the nucleus tractus solitarius region of the medulla oblongata, Levonordefrin induces centrally mediated hypotension and bradycardia. When administered intravenously, Levonordefrin increases mean arterial blood pressure in a dose-dependent manner. Levonordefrin is applicable for research on the pathophysiology of hypertension and drug metabolism .

HY-A0066

Tolazoline Imidaline; NSC35110	Adrenergic Receptor	Cardiovascular Disease Endocrinology
Tolazoline (Imidaline) is an α-adrenergic receptor antagonist. Tolazoline inhibits Noradrenaline (HY-13715)-induced cell contraction, modulates vascular resistance, increases arterial pressure, and reverses bradycardia and tachypnea. Tolazoline can be used to study erectile dysfunction, α₂-adrenergic receptor agonist-related poisoning, and skin vascular disease research .

HY-105090

Lerisetron	5-HT Receptor	Cardiovascular Disease Neurological Disease
Lerisetron is a potent 5-HT₃ antagonists and possess high-affinity binding for the 5-HT₃ receptors with pK_i value of 9.2. Lerisetron has a potent ability to inhibit the 5-HT-evoked reflex bradycardia in urethane-anesthetized rats .

HY-103174

MRS1334	Adenosine Receptor	Cardiovascular Disease
MRS1334 is a potent and selective human adenosine A₃ receptor antagonist with K_is of 2.69 nM, >100 nM, >100 nM for hA₃, rA₁, rA_2A, respectively. MRS1334 blocks the protective effect of Cl-IB-MECA leading to significant bradycardia and elevated ST segment . MRS1334 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-B1205R

Atropine (Standard) Tropine tropate (Standard); DL-Hyoscyamine (Standard)	Reference Standards mAChR Endogenous Metabolite	Cardiovascular Disease Neurological Disease
Atropine (Standard) is the analytical standard of Atropine. This product is intended for research and analytical applications. Atropine (Tropine tropate) is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M₄ and Chicken mAChR M₄, respectively. Atropine inhibits ACh-induced relaxations in human pulmonary veins. Atropine can be used for research of anti-myopia and bradycardia .

HY-12355A

Siponimod hemifumarate 5+ Cited Publications BAF-312 hemifumarate	LPL Receptor Potassium Channel	Neurological Disease Inflammation/Immunology
Siponimod (BAF-312) hemifumarate is an orally active, blood-brain barrier penetrant dual agonist of S1P1/S1P5, with EC₅₀ values of 0.39 nM and 0.98 nM, respectively. Siponimod hemifumarate induces S1P1 internalization, activates GIRK channels, inhibits lymphocyte egress, reduces peripheral lymphocyte counts, triggers transient bradycardia, prevents synaptic neurodegeneration, promotes remyelination, alleviates demyelination, and prevents the loss of GABAergic interneurons. Siponimod hemifumarate can be used in research related to multiple sclerosis .

HY-108353A

Isoprenaline hemisulfate Maximum Cited Publications 87 Publications Verification	Adrenergic Receptor Endogenous Metabolite	Cardiovascular Disease Endocrinology
Isoprenaline hemisulfate is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-B1205AR

Atropine sulfate (Standard) Tropine tropate sulfate (Standard); DL-Hyoscyamine sulfate (Standard); Sulfatropinol (Standard)	Reference Standards mAChR	Cardiovascular Disease Neurological Disease
Atropine (sulfate) (Standard) is the analytical standard of Atropine (sulfate). This product is intended for research and analytical applications. Atropine (Tropine tropate) sulfate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC50 values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine sulfate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate can be used for research of anti-myopia and bradycardia .

HY-B1277A

Trihexyphenidyl	mAChR Cholinesterase (ChE)	Cardiovascular Disease Neurological Disease
Trihexyphenidyl is a selective and orally active M₁ muscarinic receptor antagonist with an IC₅₀ of 3.7 nM for rat cerebral cortex M1 muscarinic receptors. Trihexyphenidyl modulates cholinergic activity, countering acetylcholine supersensitivity in neural pathways. Trihexyphenidyl improves movement disorder, inhibits McN-A-343 (HY-107648)-induced pressor responses, vagally-induced bradycardia and vasodilatation. Trihexyphenidyl can be used for the research of Parkinson's disease. .

HY-121311

Metrenperone	Serotonin Transporter Adrenergic Receptor	Cardiovascular Disease
Metrenperone is an inhibitor for 5-HT2 receptor. Metrenperone exhibits α1 and α2 antagonist activity as well as anti-H1 and anti-dopaminergic efficacy. Metrenperone can lower the blood pressure, enhances bradycardia in peripheral ischemia, inhibits serotonin-induced platelet aggregation, and antagonizes serotonin-mediated vasoconstriction. Metrenperone promotes the repair of acutely damaged collagen tissue .

HY-106928

U 93385	5-HT Receptor	Neurological Disease
U93385 is a 5-HT₁A receptor agonist. U93385 exhibits no significant α₂ adrenergic, D₂ dopamine, or other receptor activities. U93385 has a heart rate regulating effect, stimulating the vagus nerve to induce bradycardia. U93385 can be used to study the 5-HT₁A receptor-mediated vagal nerve tolerance mechanism .

HY-16734

Amiselimod MT-1303	LPL Receptor	Cardiovascular Disease Inflammation/Immunology
Amiselimod (MT-1303) is converted to its active metabolite Amiselimod phosphate by sphingosine kinases in vivo. Amiselimod is an orally active and high selectivity sphingosine 1-phosphate receptor-1 (S1P1) agonist, designed to reduce the bradycardia effects associated with fingolimod and other S1P receptor modulators. Amiselimod inhibits chronic colitis via inhibiting infiltration of colitogenic Th1 and Th17 cells into the colon. Amiselimod inhibits lupus nephritis by reducing the infiltration of autoreactive T cells into the kidneys. Amiselimodis promising for research of autoimmune diseases .

HY-B0468R

Isoprenaline hydrochloride (Standard) Isoproterenol hydrochloride (Standard)	Reference Standards Adrenergic Receptor Endogenous Metabolite	Cardiovascular Disease Endocrinology
Isoprenaline (hydrochloride) (Standard) is the analytical standard of Isoprenaline (hydrochloride). This product is intended for research and analytical applications. Isoprenaline (Isoproterenol) hydrochloride is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-122489A

(S)-Laudanosine	Opioid Receptor GABA Receptor	Cardiovascular Disease Neurological Disease
(S)-Laudanosine is an alkaloid that can be found in poppies and is the S-enantiomer of Laudanosine. Laudanosine acts on the central nervous system and cardiovascular system, inhibiting low-affinity GABA receptors with an IC₅₀ value of 10 μM, and can cause seizures, hypotension, and bradycardia. Additionally, Laudanosine exerts analgesic effects by competitively binding to the opioid Mu-1 receptor (K_i = 2.7 μM) .

HY-B1470S

Azaperone-d4 R-1929-d₄	Isotope-Labeled Compounds Dopamine Receptor Adrenergic Receptor	Neurological Disease
Azaperone-d₄ (R-1929-d₄) is the deuterium labeled Azaperone (HY-B1470). Azaperone is an antagonist of dopamine D2 receptor (Dopamine D2 Receptor) and α-adrenergic receptor (AR). Azaperone reduces vasomotor tone, mean arterial pressure, hematocrit, hemoglobin concentration, and etorphine-induced duration; induces transient tachycardia followed by bradycardia, splenic uptake of red blood cells, and sedation; alters animal behaviors; and produces sedation with distinct onset and duration in foals. Azaperone is used for sedation and tranquilization in various animals to reduce stress and aggressive behaviors, and serves as a preanesthetic agent.

HY-155297

Nebidrazine FLA-136	Histamine Receptor	Cardiovascular Disease
Nebidrazine is a centrally-acting hypotensive agent compared to clonidine, demonstrating weaker cardiovascular effects in rats. It induces dose-dependent hypotension and bradycardia when administered intracerebroventricularly (i.c.v.), with significantly lower sedative potential than clonidine in conscious rats. Yohimbine attenuates the cardiovascular effects of both Nebidrazine and clonidine, suggesting involvement of central alpha-autoreceptors sensitive to yohimbine. Unlike clonidine, Nebidrazine does not affect peripheral alpha-adrenoceptors in pithed rats, indicating a selective central mechanism. Chemical sympathectomy reduces Nebidrazine's cardiovascular effects more than clonidine's, and metiamide diminishes responses to both drugs, implicating central histamine receptors. These findings highlight Nebidrazine's distinct pharmacological profile and potential therapeutic application in managing hypertension through central alpha-autoreceptor stimulation .

HY-105090R

Lerisetron (Standard)	Reference Standards 5-HT Receptor	Cardiovascular Disease Neurological Disease Cancer
Lerisetron (Standard) is the analytical standard of Lerisetron. This product is intended for research and analytical applications. Lerisetron is a potent 5-HT3 antagonists and possess high-affinity binding for the 5-HT3 receptors with pKi value of 9.2. Lerisetron has a potent ability to inhibit the 5-HT-evoked reflex bradycardia in urethane-anesthetized rats .

HY-B1205B

Atropine hydrobromide Tropine tropate hydrobromide; DL-Hyoscyamine hydrobromide	mAChR	Cardiovascular Disease Neurological Disease Cancer
Atropine (Tropine tropate) hydrobromide is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M₄ and Chicken mAChR M₄, respectively. Atropine hydrobromide inhibits ACh-induced relaxations in human pulmonary veins. Atropine hydrobromide can be used for research of anti-myopia and bradycardia .

HY-B0394R

Atropine sulfate monohydrate (Standard) Tropine tropate sulfate monohydrate (Standard); DL-Hyoscyamine sulfate monohydrate (Standard)	Reference Standards mAChR	Cardiovascular Disease Neurological Disease
Atropine (sulfate monohydrate) (Standard) is the analytical standard of Atropine (sulfate monohydrate). This product is intended for research and analytical applications. Atropine (Tropine tropate) sulfate monohydrate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine sulfate monohydrate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate monohydrate can be used for research of anti-myopia and bradycardia .

HY-103214A

Bucindolol hydrochloride	Adrenergic Receptor	Cardiovascular Disease
Bucindolol hydrochloride is a β-adrenergic receptor antagonist with activity in preventing new-onset atrial fibrillation. Bucindolol hydrochloride can reduce heart rate and the occurrence of bradycardia in patients with heart failure and atrial fibrillation .

HY-107644

AQ-RA 741	mAChR	Cardiovascular Disease
AQ-RA 741 is a potent and selective M 2 antagonist. AQ-RA 741 inhibits the vagally or agonist-induced bradycardia in rats, cats and guinea-pigs. AQ-RA 741 is used in bradycardiac disorders research .

HY-B0468S

Isoprenaline-d7 hydrochloride Isoproterenol-d7 hydrochloride	Isotope-Labeled Compounds Endogenous Metabolite Adrenergic Receptor	Cardiovascular Disease
Isoprenaline-d7 (hydrochloride) is a deuterated labeled Isoprenaline (hydrochloride) . Isoprenaline (Isoproterenol) hydrochloride is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-123196

CVT-2759	Adenosine Receptor	Cardiovascular Disease
CVT-2759 is a potent inhibitor of A₁-ADOR, with the IC₅₀ values of 0.18 μM and 9.5 μM to reduce the binding of [3H]CPX in the absence and presence of 1 mM GTP. CVT-2759 plays an important role in slowing AV nodal conduction and thereby ventricular rate without causing AV block, bradycardia, atrial arrhythmias, or vasodilation .

HY-105449A

KB R6933 KB 6806 maleate	5-HT Receptor	Cardiovascular Disease
KB R6933 (KB 6806 maleate) is a potent, selective and orally active 5-HT3 receptor antagonist. KB R6933 can inhibit the diarrhea induced by 5-HT (HY-B1473A), but not that by Castor Oil (HY-107799) or prostaglandin E2 (PGE2) (HY-101952). KB R6933 can inhibit 5-HT-induced bradycardia .

HY-B1277AS

Trihexyphenidyl-d5	Isotope-Labeled Compounds mAChR Cholinesterase (ChE)	Neurological Disease
Trihexyphenidyl-d₅ is deuterium labeled Trihexyphenidyl (HY-B1277A). Trihexyphenidyl is a selective and orally active M₁ muscarinic receptor antagonist with an IC₅₀ of 3.7 nM for rat cerebral cortex M1 muscarinic receptors. Trihexyphenidyl modulates cholinergic activity, countering acetylcholine supersensitivity in neural pathways. Trihexyphenidyl improves movement disorder, inhibits McN-A-343 (HY-107648)-induced pressor responses, vagally-induced bradycardia and vasodilatation. Trihexyphenidyl can be used for the research of Parkinson's disease. .

HY-A0066R

Tolazoline (Standard) Imidaline (Standard); NSC35110 (Standard)	Adrenergic Receptor Reference Standards	Cardiovascular Disease Endocrinology
Tolazoline (Standard) is the analytical standard of Tolazoline. This product is intended for research and analytical applications. Tolazoline (Imidaline) is an α-adrenergic receptor antagonist. Tolazoline inhibits Noradrenaline (HY-13715)-induced cell contraction, modulates vascular resistance, increases arterial pressure, and reverses bradycardia and tachypnea. Tolazoline can be used to study erectile dysfunction, α2-adrenergic receptor agonist-related poisoning, and skin vascular disease research .

HY-106909A

YM114 KAE-393	5-HT Receptor	Cardiovascular Disease
YM114 (KAE-393) is a highly potent and selective (5-HT)₃-receptor antagonist that does not affect Veratridine (HY-N6691)- or electrical stimulation-induced bradycardia in anesthetized rats. YM114 inhibits 2-methyl-5-HT (HY-19358)-induced Bezold-Jarisch reflex, which originates from (5-HT)₃-receptor located on the endings of vagal afferent nerves in the heart .

HY-B1277S

Trihexyphenidyl-d5 hydrochloride	Isotope-Labeled Compounds mAChR Cholinesterase (ChE)	Neurological Disease
Trihexyphenidyl-d₅ hydrochloride is deuterium labeled Trihexyphenidyl hydrochloride (HY-B1277). Trihexyphenidyl hydrochloride is a selective and orally active M₁ muscarinic receptor antagonist with an IC₅₀ of 3.7 nM for rat cerebral cortex M1 muscarinic receptors. Trihexyphenidyl hydrochloride modulates cholinergic activity, countering acetylcholine supersensitivity in neural pathways. Trihexyphenidyl hydrochloride improves movement disorder, inhibits McN-A-343 (HY-107648)-induced pressor responses, vagally-induced bradycardia and vasodilatation. Trihexyphenidyl hydrochloride can be used for the research of Parkinson's disease. .

HY-A0066AR

Tolazoline hydrochloride (Standard) Imidaline hydrochloride (Standard); NSC35110 hydrochloride (Standard)	Reference Standards Adrenergic Receptor	Cardiovascular Disease Endocrinology
Tolazoline (hydrochloride) (Standard) is the analytical standard of Tolazoline hydrochloride (HY-A0066A). This product is intended for research and analytical applications. Tolazoline hydrochloride (Imidaline hydrochloride) is an α-adrenergic receptor antagonist. Tolazoline hydrochloride inhibits Noradrenaline (HY-13715)-induced cell contraction, modulates vascular resistance, increases arterial pressure, and reverses bradycardia and tachypnea. Tolazoline hydrochloride can be used to study erectile dysfunction, α₂-adrenergic receptor agonist-related poisoning, and skin vascular disease research .

HY-B1277R

Trihexyphenidyl hydrochloride (Standard)	Reference Standards mAChR Cholinesterase (ChE)	Neurological Disease
Trihexyphenidyl hydrochloride (Standard) is the analytical standard of Trihexyphenidyl hydrochloride (HY-B1277). This product is intended for research and analytical applications. Trihexyphenidyl is a selective and orally active M₁ muscarinic receptor antagonist with an IC₅₀ of 3.7 nM for rat cerebral cortex M1 muscarinic receptors. Trihexyphenidyl modulates cholinergic activity, countering acetylcholine supersensitivity in neural pathways. Trihexyphenidyl improves movement disorder, inhibits McN-A-343 (HY-107648)-induced pressor responses, vagally-induced bradycardia and vasodilatation. Trihexyphenidyl can be used for the research of Parkinson's disease. .

HY-107915R

Levonordefrin (Standard) (-)-Cobefrin (Standard); (-)-α-Methylnoradrenaline (Standard); (-)-Nordefrin (Standard)	Reference Standards Adrenergic Receptor	Others
Levonordefrin (Standard) is the analytical standard of Levonordefrin. This product is intended for research and analytical applications. Levonordefrin ((-)-Cobefrin; (-)-α-Methylnoradrenaline; (-)-Nordefrin) is an α-adrenergic receptor agonist with blood pressure regulatory properties. Levonordefrin is a key metabolite responsible for the hypotensive effect of α-methyldopa. By stimulating central α-adrenergic receptors in the nucleus tractus solitarius region of the medulla oblongata, Levonordefrin induces centrally mediated hypotension and bradycardia. When administered intravenously, Levonordefrin increases mean arterial blood pressure in a dose-dependent manner. Levonordefrin is applicable for research on the pathophysiology of hypertension and drug metabolism .

HY-B1470R

Azaperone (Standard) R-1929 (Standard)	Reference Standards Dopamine Receptor Adrenergic Receptor	Neurological Disease
Azaperone (R-1929) (Standard) is the analytical standard of Azaperone (HY-B1470). This product is intended for research and analytical applications. Azaperone is an antagonist of dopamine D2 receptor (Dopamine D2 Receptor) and α-adrenergic receptor (AR). Azaperone reduces vasomotor tone, mean arterial pressure, hematocrit, hemoglobin concentration, and etorphine-induced duration; induces transient tachycardia followed by bradycardia, splenic uptake of red blood cells, and sedation; alters animal behaviors; and produces sedation with distinct onset and duration in foals. Azaperone is used for sedation and tranquilization in various animals to reduce stress and aggressive behaviors, and serves as a preanesthetic agent.

HY-116294

Methoctramine	mAChR	Cardiovascular Disease
Methoctramine is a potent and cardioselectivity antagonist of M2 muscarinic receptor. Methoctramine can inhibit Muscarine (HY-121404)-induced bradycardia in vivo. Methoctramine can be used in the study of cardiovascular diseases .

HY-118390

Jingsongling	Adrenergic Receptor Drug Derivative	Cardiovascular Disease
Jingsongling is a Xylazine analog and anesthetic agent. Jingsongling causes bradycardia and hypertension by mediating α2-adrenoceptors. Jingsongling inhibits canine gastric motility through mediation of α1 and α2 adrenergic receptors .

HY-112014

Meglumine Metrizoate Methylglucamine metrizoate	Biochemical Assay Reagents	Cardiovascular Disease Neurological Disease
Meglumine Metrizoate (Methylglucamine metrizoate) is an ionic water-soluble contrast medium. Meglumine Metrizoate has a good imaging effect in cerebral angiography. Compared with the non-ionic contrast medium Metrizamide (HY-W000133), Meglumine Metrizoate has a higher probability of causing adverse effects such as EEG deterioration and bradycardia .

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 .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-B0468

Isoprenaline hydrochloride Maximum Cited Publications 87 Publications Verification Isoproterenol hydrochloride	Cardiovascular Disease Alkaloids Classification of Application Fields Other Alkaloids Phenols Polyphenols Endogenous metabolite Disease Research Fields Endocrinology Source Classification	Adrenergic Receptor Endogenous Metabolite
Isoprenaline (Isoproterenol) hydrochloride is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-B1205

Atropine 20+ Cited Publications Tropine tropate; DL-Hyoscyamine	Alkaloids Structural Classification Other Alkaloids Atropa belladonna Linn. Solanaceae Plants Endogenous metabolite Source Classification	Environmental Pollutants Endogenous Metabolite mAChR
Atropine (Tropine tropate) is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M₄ and Chicken mAChR M₄, respectively. Atropine inhibits ACh-induced relaxations in human pulmonary veins. Atropine can be used for research of anti-myopia and bradycardia .

HY-108353

Isoprenaline Maximum Cited Publications 87 Publications Verification	Cardiovascular Disease Alkaloids Classification of Application Fields Other Alkaloids Phenols Polyphenols Endogenous metabolite Disease Research Fields Endocrinology Source Classification	Adrenergic Receptor Endogenous Metabolite
Isoprenaline is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-A0066A

Tolazoline hydrochloride Imidaline hydrochloride; NSC35110 hydrochloride	Alkaloids Classification of Application Fields Other Alkaloids Alpinia officinarum Hance Plants Disease Research Fields Endocrinology Source Classification Zingiberaceae	Adrenergic Receptor
Tolazoline hydrochloride (Imidaline hydrochloride) is an α-adrenergic receptor antagonist. Tolazoline hydrochloride inhibits Noradrenaline (HY-13715)-induced cell contraction, modulates vascular resistance, increases arterial pressure, and reverses bradycardia and tachypnea. Tolazoline hydrochloride can be used to study erectile dysfunction, α₂-adrenergic receptor agonist-related poisoning, and skin vascular disease research .

HY-B1205R

Atropine (Standard) Tropine tropate (Standard); DL-Hyoscyamine (Standard)	Atropa belladonna Linn. Solanaceae Plants Endogenous metabolite Source Classification	Reference Standards mAChR Endogenous Metabolite
Atropine (Standard) is the analytical standard of Atropine. This product is intended for research and analytical applications. Atropine (Tropine tropate) is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M₄ and Chicken mAChR M₄, respectively. Atropine inhibits ACh-induced relaxations in human pulmonary veins. Atropine can be used for research of anti-myopia and bradycardia .

HY-108353A

Isoprenaline hemisulfate Maximum Cited Publications 87 Publications Verification	Cardiovascular Disease Alkaloids Classification of Application Fields Other Alkaloids Phenols Polyphenols Endogenous metabolite Disease Research Fields Endocrinology Source Classification	Adrenergic Receptor Endogenous Metabolite
Isoprenaline hemisulfate is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-B1205AR

Atropine sulfate (Standard) Tropine tropate sulfate (Standard); DL-Hyoscyamine sulfate (Standard); Sulfatropinol (Standard)	Alkaloids Structural Classification Other Alkaloids Atropa belladonna Linn. Solanaceae Plants Source Classification	Reference Standards mAChR
Atropine (sulfate) (Standard) is the analytical standard of Atropine (sulfate). This product is intended for research and analytical applications. Atropine (Tropine tropate) sulfate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC50 values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine sulfate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate can be used for research of anti-myopia and bradycardia .

HY-B0468R

Isoprenaline hydrochloride (Standard) Isoproterenol hydrochloride (Standard)	Structural Classification Alkaloids Other Alkaloids Phenols Polyphenols Endogenous metabolite Source Classification	Reference Standards Adrenergic Receptor Endogenous Metabolite
Isoprenaline (hydrochloride) (Standard) is the analytical standard of Isoprenaline (hydrochloride). This product is intended for research and analytical applications. Isoprenaline (Isoproterenol) hydrochloride is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-122489A

(S)-Laudanosine	Alkaloids Microorganisms Isoquinoline Alkaloids Source Classification	Opioid Receptor GABA Receptor
(S)-Laudanosine is an alkaloid that can be found in poppies and is the S-enantiomer of Laudanosine. Laudanosine acts on the central nervous system and cardiovascular system, inhibiting low-affinity GABA receptors with an IC₅₀ value of 10 μM, and can cause seizures, hypotension, and bradycardia. Additionally, Laudanosine exerts analgesic effects by competitively binding to the opioid Mu-1 receptor (K_i = 2.7 μM) .

HY-B0394R

Atropine sulfate monohydrate (Standard) Tropine tropate sulfate monohydrate (Standard); DL-Hyoscyamine sulfate monohydrate (Standard)	Alkaloids Structural Classification Other Alkaloids Atropa belladonna Linn. Solanaceae Plants Source Classification	Reference Standards mAChR
Atropine (sulfate monohydrate) (Standard) is the analytical standard of Atropine (sulfate monohydrate). This product is intended for research and analytical applications. Atropine (Tropine tropate) sulfate monohydrate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC₅₀ values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine sulfate monohydrate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate monohydrate can be used for research of anti-myopia and bradycardia .

HY-A0066AR

Tolazoline hydrochloride (Standard) Imidaline hydrochloride (Standard); NSC35110 hydrochloride (Standard)	Alkaloids Other Alkaloids Alpinia officinarum Hance Plants Source Classification Zingiberaceae	Reference Standards Adrenergic Receptor
Tolazoline (hydrochloride) (Standard) is the analytical standard of Tolazoline hydrochloride (HY-A0066A). This product is intended for research and analytical applications. Tolazoline hydrochloride (Imidaline hydrochloride) is an α-adrenergic receptor antagonist. Tolazoline hydrochloride inhibits Noradrenaline (HY-13715)-induced cell contraction, modulates vascular resistance, increases arterial pressure, and reverses bradycardia and tachypnea. Tolazoline hydrochloride can be used to study erectile dysfunction, α₂-adrenergic receptor agonist-related poisoning, and skin vascular disease research .

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 .

Cat. No.	Product Name	Chemical Structure

HY-B1470S

Azaperone-d4

Azaperone-d₄ (R-1929-d₄) is the deuterium labeled Azaperone (HY-B1470). Azaperone is an antagonist of dopamine D2 receptor (Dopamine D2 Receptor) and α-adrenergic receptor (AR). Azaperone reduces vasomotor tone, mean arterial pressure, hematocrit, hemoglobin concentration, and etorphine-induced duration; induces transient tachycardia followed by bradycardia, splenic uptake of red blood cells, and sedation; alters animal behaviors; and produces sedation with distinct onset and duration in foals. Azaperone is used for sedation and tranquilization in various animals to reduce stress and aggressive behaviors, and serves as a preanesthetic agent.

HY-B0468S

Isoprenaline-d7 hydrochloride
Isoprenaline-d7 (hydrochloride) is a deuterated labeled Isoprenaline (hydrochloride) . Isoprenaline (Isoproterenol) hydrochloride is a non-selective, orally active β-adrenergic receptor agonist. Isoprenaline has potent peripheral vasodilator, bronchodilator, and cardiac stimulating activities. Isoprenaline can be used for the research of bradycardia and bronchial asthma .

HY-B1277AS

Trihexyphenidyl-d5

Trihexyphenidyl-d₅ is deuterium labeled Trihexyphenidyl (HY-B1277A). Trihexyphenidyl is a selective and orally active M₁ muscarinic receptor antagonist with an IC₅₀ of 3.7 nM for rat cerebral cortex M1 muscarinic receptors. Trihexyphenidyl modulates cholinergic activity, countering acetylcholine supersensitivity in neural pathways. Trihexyphenidyl improves movement disorder, inhibits McN-A-343 (HY-107648)-induced pressor responses, vagally-induced bradycardia and vasodilatation. Trihexyphenidyl can be used for the research of Parkinson's disease. .

HY-B1277S

Trihexyphenidyl-d5 hydrochloride

Trihexyphenidyl-d₅ hydrochloride is deuterium labeled Trihexyphenidyl hydrochloride (HY-B1277). Trihexyphenidyl hydrochloride is a selective and orally active M₁ muscarinic receptor antagonist with an IC₅₀ of 3.7 nM for rat cerebral cortex M1 muscarinic receptors. Trihexyphenidyl hydrochloride modulates cholinergic activity, countering acetylcholine supersensitivity in neural pathways. Trihexyphenidyl hydrochloride improves movement disorder, inhibits McN-A-343 (HY-107648)-induced pressor responses, vagally-induced bradycardia and vasodilatation. Trihexyphenidyl hydrochloride can be used for the research of Parkinson's disease. .

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