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α-2-adrenoceptor

" in MedChemExpress (MCE) Product Catalog:

By Targets:	5-HT Receptor (7) Adrenergic Receptor (64) Apoptosis (4) Autophagy (4) Dopamine Receptor (7) Endogenous Metabolite (3) Histamine Receptor (4) Histone Methyltransferase (5) Imidazoline Receptor (9) Isotope-Labeled Compounds (6) Monoamine Oxidase (3) Parasite (2)
By Research Areas:	Cancer (24) Cardiovascular Disease (22) Endocrinology (31) Inflammation/Immunology (5) Metabolic Disease (4) Neurological Disease (38)

Inhibitors & Agonists

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Isotope-Labeled Compounds

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-12724A

Guanabenz hydrochloride 2 Publications Verification	Parasite Adrenergic Receptor	Cardiovascular Disease
Guanabenz hydrochloride is an orally active *α-2-adrenoceptor* agonist. Guanabenz hydrochloride has antihypertensive effect and antiparasitic activity. Guanabenz hydrochloride interferes ER stress-signalling and has protective effects in cardiac myocytes. Guanabenz hydrochloride also is used for the research of high blood pressure ^[2] .

HY-B0409A

Clonidine hydrochloride 5 Publications Verification	Adrenergic Receptor	Cardiovascular Disease Endocrinology Cancer
Clonidine hydrochloride is an agonist of *α2-adrenoceptor* and potent antihypertensive agent.

HY-U00165

Midaglizole hydrochloride (±)-DG5128; DG5128	Adrenergic Receptor	Metabolic Disease Endocrinology
Midaglizole hydrochloride (DG5128) is a preferential *α2-adrenoceptor* antagonist. Midaglizole hydrochloride (DG5128) exhibits 7.4 times higher affinity (pK_i=6.28) toward α2-adrenoceptor than α1-adrenoceptor.

HY-12380A

Atipamezole 5+ Cited Publications MPV 1248	Adrenergic Receptor	Neurological Disease Endocrinology
Atipamezole (MPV 1248) is a potent α₂-adrenoceptor antagonist with a K_i of 1.6 nM .

HY-12380

Atipamezole hydrochloride 5+ Cited Publications MPV-1248 hydrochloride	Adrenergic Receptor	Neurological Disease Endocrinology
Atipamezole (MPV-1248) hydrochloride is a potent α₂-adrenoceptor antagonist with a K_i of 1.6 nM .

HY-12710

Rauwolscine α-Yohimbine; Corynanthidine; Isoyohimbine	Adrenergic Receptor	Cancer
Rauwolscine is a selective *α2-adrenoceptor* antagonist that inhibits tumor growth and induces apoptosis .

HY-12724

Guanabenz	Adrenergic Receptor Parasite	Cardiovascular Disease
Guanabenz is an orally active *α-2-adrenoceptor* agonist. Guanabenz has antihypertensive effect and antiparasitic activity. Guanabenz interferes ER stress-signalling and has protective effects in cardiac myocytes. Guanabenz also is used for the research of high blood pressure ^[2] .

HY-155879

(±)-N-Methylcoclaurine	Adrenergic Receptor	Others
(±)-N-Methylcoclaurine is a selective α2-adrenoceptor antagonist .

HY-B0409AR

Clonidine hydrochloride (Standard)	Adrenergic Receptor	Cardiovascular Disease Endocrinology Cancer
Clonidine (hydrochloride) (Standard) is the analytical standard of Clonidine (hydrochloride). This product is intended for research and analytical applications. Clonidine hydrochloride is an agonist of α2-adrenoceptor and potent antihypertensive agent.

HY-B0409S

Clonidine-d4	Adrenergic Receptor	Cardiovascular Disease Endocrinology Cancer
Clonidine-d₄ is the deuterium labeled Clonidine. Clonidine hydrochloride is an agonist of α2-adrenoceptor and potent antihypertensive agent[1][2][3][4][5].

HY-17034

Medetomidine	Adrenergic Receptor	Neurological Disease Endocrinology
Medetomidine is an orally active *α2-adrenoceptor* agonist (K_i: 1.08 nM). Medetomidine has sedative and analgesic effects. Medetomidine can cause peripheral vasoconstriction through the activation of α2 adrenoceptors on blood vessels ^[2] .

HY-17034B

Medetomidine hydrochloride MPV785	Adrenergic Receptor	Neurological Disease Endocrinology
Medetomidine hydrochloride is an orally active *α2-adrenoceptor* agonist (K_i: 1.08 nM). Medetomidine hydrochloride has sedative and analgesic effects. Medetomidine hydrochloride can cause peripheral vasoconstriction through the activation of α2 adrenoceptors on blood vessels ^[2] .

HY-A0008

Talipexole dihydrochloride B-HT 920 dihydrochloride	Adrenergic Receptor Dopamine Receptor 5-HT Receptor	Neurological Disease Endocrinology
Talipexole dihydrochloride (B-HT 920 dihydrochloride) is a dopamine D2 receptor agonist, α2-adrenoceptor agonist and 5-HT3 receptor antagonist, which displays antiParkinsonian activity.

HY-136935

Alloyohimbine	Adrenergic Receptor	Endocrinology
Alloyohimbine, an alkaloid, is a selective *α2-adrenoceptor* antagonist with K_Dα1, K_Dα2 of 0.28 μM and 0.006 μM, respectively .

HY-106874B

rel-Delequamine rel-RS-15385-197	Others	Neurological Disease
rel-Delequamine (rel-RS-15385-197) is an orally active, brain-penetrant, potent and selective *M₂-adrenoceptor* antagonist and *α₂-adrenoceptor* antagonist. rel-Delequamine has a pK_i of 9.45 for α₂-adrenoceptors in the rat cortex. rel-Delequamine augments K ⁺-evoked release of noradrenaline with an EC₅₀ of 1 nM .

HY-B1416A

Efaroxan hydrochloride	Adrenergic Receptor Imidazoline Receptor	Cardiovascular Disease Metabolic Disease
Efaroxan hydrochloride is a potent, selective and orally active *α2-adrenoceptor* antagonist, with antidiabetic activity. Efaroxan hydrochloride is a selective I1-Imidazoline receptor antagonist. Efaroxan hydrochloride can be used for the research of cardiovascular disease ^[2] .

HY-148529

Midaglizole (±)-DG5128 free base; DG5128 free base	Adrenergic Receptor	Metabolic Disease
Midaglizole ((±)-DG5128 free base, DG5128 free base) is a potent *α2-adrenoceptor* antagonist. Midaglizole is a hypoglycemic agent. Midaglizole increases blood pressure and reduces blood glucose levels in vivo ^[2] .

HY-17034BS1

Medetomidine-13C,d3 hydrochloride MPV785-¹³C,d₃	Isotope-Labeled Compounds Adrenergic Receptor	Endocrinology
Medetomidine-13C,d3 (hydrochloride) is a deuterated labeled Medetomidine (hydrochloride) . Medetomidine hydrochloride is an orally active *α2-adrenoceptor* agonist (K_i: 1.08 nM). Medetomidine hydrochloride has sedative and analgesic effects. Medetomidine hydrochloride can cause peripheral vasoconstriction through the activation of α2 adrenoceptors on blood vessels ^[2] .

HY-W263279

(E)-Guanabenz (E)-Wy-8678	Adrenergic Receptor	Cardiovascular Disease Neurological Disease
(E)-Guanabenz ((E)-Wy-8678) is an orally active central *α2-adrenoceptor* agonist. (E)-Guanabenz has antihypertensive activity, acts via stimulating central α2-adrenoceptors, and reducing net sympathetic outflow into the periphery. (E)-Guanabenz also directly binds to and inhibits GADD34, and has neuroprotective activity. (E)-Guanabenz can be used for researching hypertension and Parkinson disease ^[2].

HY-103203

ST91	Adrenergic Receptor	Neurological Disease
ST91 is a **α₂-adrenoceptor (α₂AR)** agonist. ST91 activates both α_2AAR and non-α_2AAR subtypes to produce spinal antinociception ^[2] .

HY-17034A

Dexmedetomidine hydrochloride Maximum Cited Publications 10 Publications Verification (+)-Medetomidine hydrochloride; (S)-Medetomidine hydrochloride	Adrenergic Receptor	Neurological Disease Endocrinology Cancer
Dexmedetomidine hydrochloride ((+)-Medetomidine hydrochloride) is a potent, selective and orally active agonist of *α2-adrenoceptor, with a K_i* of 1.08 nM. Dexmedetomidine hydrochloride shows 1620-fold selectivity against α1-adrenoceptor. Dexmedetomidine hydrochloride exhibits anxiolysis, sedation, and modest analgesia effects ^[2] .

HY-12719

Dexmedetomidine Maximum Cited Publications 10 Publications Verification (+)-Medetomidine; (S)-Medetomidine	Adrenergic Receptor	Neurological Disease Cancer
Dexmedetomidine ((+)-Medetomidine) is a potent, selective and orally active agonist of *α2-adrenoceptor, with a K_i* of 1.08 nM. Dexmedetomidine shows 1620-fold selectivity against α1-adrenoceptor. Dexmedetomidine exhibits anxiolysis, sedation, and modest analgesia effects ^[2] .

HY-101061

2-MPMDQ	Adrenergic Receptor	Cardiovascular Disease
2-MPMDQ is a potent and selective *α1-adrenoceptor* (K_i=0.37 nM) antagonist over α2-adrenoceptor (K_i=1740 nM). 2-MPMDQ is potent anti-hypertensive agent and has the potential for hypertension research .

HY-B0354A

Urapidil hydrochloride	5-HT Receptor Adrenergic Receptor	Cardiovascular Disease Endocrinology
Urapidil hydrochloride is an orally active *α1-adrenoceptor* antagonist and 5-HT_1A receptor agonist with a pIC₅₀ of 6.13 and 4.38 against α1- and α2-adrenoceptor, respectively. Urapidil hydrochloride shows antihypertensive effect ^[2].

HY-14561A

Idazoxan hydrochloride RX 781094 hydrochloride	Adrenergic Receptor Imidazoline Receptor	Neurological Disease Endocrinology
Idazoxan hydrochloride (RX 781094 hydrochloride) is an *α₂-adrenoceptor* antagonist and is also a imidazoline receptors (IRs) antagonist competitively antagonized the centrally induced hypotensive effect of imidazoline-like agents (IMs). Idazoxan hydrochloride also improves motor symptoms in Parkinson’s disease, L-DOPA-induced dyskinesias, and experimental Parkinsonism ^[2].

HY-B0352

Mirtazapine 1 Publications Verification Org3770; 6-Azamianserin	5-HT Receptor Histamine Receptor Adrenergic Receptor	Neurological Disease Inflammation/Immunology Cancer
Mirtazapine (Org3770) is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent. Mirtazapine is also a *5-HT₂, 5-HT₃, histamine H1 receptor* and *α2-adrenoceptor* antagonist with pK_i values of 8.05, 8.1, 9.3 and 6.95, respectively ^[2].

HY-12719R

Dexmedetomidine (Standard)	Adrenergic Receptor	Neurological Disease Cancer
Dexmedetomidine (Standard) is the analytical standard of Dexmedetomidine. This product is intended for research and analytical applications. Dexmedetomidine ((+)-Medetomidine) is a potent, selective and orally active agonist of *α2-adrenoceptor, with a K_i* of 1.08 nM. Dexmedetomidine shows 1620-fold selectivity against α1-adrenoceptor. Dexmedetomidine exhibits anxiolysis, sedation, and modest analgesia effects ^[2] .

HY-17034AR

Dexmedetomidine hydrochloride (Standard) (+)-Medetomidine hydrochloride (Standard); (S)-Medetomidine hydrochloride (Standard)	Adrenergic Receptor	Neurological Disease Endocrinology Cancer
Dexmedetomidine (hydrochloride) (Standard) is the analytical standard of Dexmedetomidine (hydrochloride). This product is intended for research and analytical applications. Dexmedetomidine hydrochloride ((+)-Medetomidine hydrochloride) is a potent, selective and orally active agonist of *α2-adrenoceptor, with a K_i* of 1.08 nM. Dexmedetomidine hydrochloride shows 1620-fold selectivity against α1-adrenoceptor. Dexmedetomidine hydrochloride exhibits anxiolysis, sedation, and modest analgesia effects ^[2] .

HY-B0354AR

Urapidil hydrochloride (Standard)	5-HT Receptor Adrenergic Receptor	Cardiovascular Disease Endocrinology
Urapidil (hydrochloride) (Standard) is the analytical standard of Urapidil (hydrochloride). This product is intended for research and analytical applications. Urapidil hydrochloride is an orally active *α1-adrenoceptor* antagonist and 5-HT_1A receptor agonist with a pIC₅₀ of 6.13 and 4.38 against α1- and α2-adrenoceptor, respectively. Urapidil hydrochloride shows antihypertensive effect ^[2].

HY-17034AS

Dexmedetomidine-13C,d3 hydrochloride (+)-Medetomidine-¹³C,d₃ hydrochloride; (S)-Medetomidine-¹³C,d₃ hydrochloride	Isotope-Labeled Compounds Adrenergic Receptor	Neurological Disease Endocrinology Cancer
Dexmedetomidine- ¹³C,d₃ (hydrochloride) is the ¹³C- and deuterium labeled Dexmedetomidine (hydrochloride). Dexmedetomidine hydrochloride ((+)-Medetomidine hydrochloride) is a potent, selective and orally active agonist of α2-adrenoceptor, with a Ki of 1.08 nM. Dexmedetomidine hydrochloride shows 1620-fold selectivity against α1-adrenoceptor. Dexmedetomidine hydrochloride exhibits anxiolysis, sedation, and modest analgesia effects[1][2][3].

HY-B0352S2

Mirtazapine-d4 Org3770-d₄; 6-Azamianserin-d₄	Isotope-Labeled Compounds 5-HT Receptor Histamine Receptor Adrenergic Receptor	Neurological Disease Inflammation/Immunology
Mirtazapine-d₄ is deuterium labeled Mirtazapine. Mirtazapine (Org3770) is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent. Mirtazapine is also a 5-HT2, 5-HT3, histamine H1 receptor and α2-adrenoceptor antagonist with pKi values of 8.05, 8.1, 9.3 and 6.95, respectively[1][2].

HY-B0352R

Mirtazapine (Standard) 1 Publications Verification Org3770 (Standard); 6-Azamianserin (Standard)	5-HT Receptor Histamine Receptor Adrenergic Receptor	Neurological Disease Inflammation/Immunology Cancer
Mirtazapine (Standard) is the analytical standard of Mirtazapine. This product is intended for research and analytical applications. Mirtazapine (Org3770) is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent. Mirtazapine is also a *5-HT₂, 5-HT₃, histamine H1 receptor* and *α2-adrenoceptor* antagonist with pK_i values of 8.05, 8.1, 9.3 and 6.95, respectively ^[2].

HY-B0352S3

Mirtazapine-d4 hydrochloride	5-HT Receptor Histamine Receptor Adrenergic Receptor Isotope-Labeled Compounds	Neurological Disease Inflammation/Immunology Cancer
Mirtazapine-d₄ hydrochloride is deuterated labeled Mirtazapine (HY-B0352). Mirtazapine (Org3770) is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent. Mirtazapine is also a *5-HT₂, 5-HT₃, histamine H1 receptor* and *α2-adrenoceptor* antagonist with pK_i values of 8.05, 8.1, 9.3 and 6.95, respectively ^[2].

HY-161836

α2AR agonist 1	Adrenergic Receptor	Cardiovascular Disease
α2AR agonist 1 (compound S6a), a new morpholine-containing pyrimidinone, acts as an agonist of *α2-adrenoceptor*. α2AR agonist 1 induces a concentration-dependent relaxation on aortic ring pre-contracted with Phenylephrine (HY-B0769; pEC₅₀=6.81). α2AR agonist 1 increases NOx and NO levels in HUVECs .

HY-101338

RS-79948-197	Adrenergic Receptor	Neurological Disease
RS-79948-197 is a non-imidazoline *α2-adrenoceptor* antagonist. RS-79948-197 shows K_d values of 0.42 nM, 0.18 nM, 0.19 nM, 0.60 nM, 0.46 nM, and 0.77 nM for rat α2A, rat α2B, rat α2C, human α2A, human α2B, and human α2C, respectively ^[2].

HY-101392S

Harmane-d1	Imidazoline Receptor Monoamine Oxidase Adrenergic Receptor	Neurological Disease Cancer
Harmane-d is the deuterium labeled Harmane. Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC50=30 nM) over α2-adrenoceptor (IC50=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC50s=0.5 and 5 μM for human MAO A/B, respectively)[1][2][3][4].

HY-101392S1

Harmane-d2	Isotope-Labeled Compounds Imidazoline Receptor Monoamine Oxidase Adrenergic Receptor	Neurological Disease Cancer
Harmane-d₂ is the deuterium labeled Harmane. Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC50=30 nM) over α2-adrenoceptor (IC50=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC50s=0.5 and 5 μM for human MAO A/B, respectively)[1][2][3][4].

HY-101392R

Harmane (Standard)	Imidazoline Receptor Monoamine Oxidase Adrenergic Receptor	Neurological Disease Cancer
Harmane (Standard) is the analytical standard of Harmane. This product is intended for research and analytical applications. Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC₅₀=30 nM) over *α2-adrenoceptor* (IC₅₀=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC₅₀s=0.5 and 5 μM for human MAO A/B, respectively). Harmane exhibits comutagenic effect ^[2] .

HY-101683

Deriglidole SL 86-0715	Adrenergic Receptor	Metabolic Disease Endocrinology
Deriglidole is a peripheral *adrenoceptor* antagonist with a high affinity for α₂-adrenoceptors.

HY-100850

Piperoxan hydrochloride Benodaine hydrochloride	Adrenergic Receptor	Inflammation/Immunology Endocrinology
Piperoxan (Benodaine) hydrochloride is an α₂ adrenoceptor antagonist. Piperoxan hydrochloride is the first-generation antihistamine.

HY-12707

Piribedil 1 Publications Verification	Dopamine Receptor Adrenergic Receptor Histone Methyltransferase	Neurological Disease Endocrinology Cancer
Piribedil is a potent and orally active dopamine D2 and dopamine D3 agonist. Piribedil is also a *α2-adrenoceptors* antagonist. Piribedil can inhibit MLL1 methyltransferase activity (EC₅₀: 0.18 μM). Piribedil has the potential for the research of parkinson's disease, circulatory disorders, cancers ^[2] .

HY-12707A

Piribedil dihydrochloride	Adrenergic Receptor Dopamine Receptor Histone Methyltransferase	Neurological Disease Endocrinology Cancer
Piribedil dihydrochloride is a potent and orally active dopamine D2 and dopamine D3 agonist. Piribedil dihydrochloride is also a *α2-adrenoceptors* antagonist. Piribedil dihydrochloride can inhibit MLL1 methyltransferase activity (EC₅₀: 0.18 μM). Piribedil dihydrochloride has the potential for the research of parkinson's disease, circulatory disorders, cancers ^[2] .

HY-12707C

Piribedil hydrochloride	Dopamine Receptor Adrenergic Receptor Histone Methyltransferase	Neurological Disease Endocrinology Cancer
Piribedil hydrochloride is a potent and orally active dopamine D2 and dopamine D3 agonist. Piribedil hydrochloride is also a *α2-adrenoceptors* antagonist. Piribedil hydrochloride can inhibit MLL1 methyltransferase activity (EC₅₀: 0.18 μM). Piribedil hydrochloride has the potential for the research of parkinson's disease, circulatory disorders, cancers ^[2] .

HY-12707B

Piribedil maleate	Dopamine Receptor Adrenergic Receptor Histone Methyltransferase	Neurological Disease Endocrinology Cancer
Piribedil maleate is a potent and orally active dopamine D2 and dopamine D3 agonist. Piribedil maleate is also a *α2-adrenoceptors* antagonist. Piribedil maleate can inhibit MLL1 methyltransferase activity (EC₅₀: 0.18 μM). Piribedil maleate has the potential for the research of parkinson's disease, circulatory disorders, cancers ^[2] .

HY-106769

Fluparoxan GR50360	Adrenergic Receptor	Neurological Disease
Fluparoxan is an orally active, selective and competitive *alpha 2-adrenoceptor* antagonist. Fluparoxan is an anti-depressant agent ^[2].

HY-N1163

Tetrahydroalstonine	Adrenergic Receptor	Neurological Disease Endocrinology
Tetrahydroalstonine, a indole alkaloid isolated from the fruits of Rhazya stricta, is a selective *alpha 2-adrenoceptor* antagonist ^[2].

HY-106769C

Fluparoxan hydrochloride GR50360 hydrochloride	Adrenergic Receptor	Neurological Disease
Fluparoxan hydrochloride is an orally active, selective and competitive *alpha 2-adrenoceptor* antagonist. Fluparoxan hydrochloride is an anti-depressant agent ^[2].

HY-160932

RS-15385-198	Others	Endocrinology
RS-15385-198 is the enantiomer of Delequamine (RS-15385-197) (HY-106874). RS-15385-198 exhibits a pK_i of 6.32 for α₂-adrenoceptors in the rat cortex. RS-15385-198 is an antagonist for UK-14304 (HY-B0659) in the rat vas deferens and in the guinea-pig ileum .

HY-B0528A

Octopamine hydrochloride 1 Publications Verification (±)-p-Octopamine hydrochloride	Adrenergic Receptor Endogenous Metabolite	Neurological Disease Endocrinology
Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure ^[2] .

HY-12707R

Piribedil (Standard)	Dopamine Receptor Adrenergic Receptor Histone Methyltransferase	Neurological Disease Endocrinology Cancer
Piribedil (Standard) is the analytical standard of Piribedil. This product is intended for research and analytical applications. Piribedil is a potent and orally active dopamine D2 and dopamine D3 agonist. Piribedil is also a *α2-adrenoceptors* antagonist. Piribedil can inhibit MLL1 methyltransferase activity (EC₅₀: 0.18 μM). Piribedil has the potential for the research of parkinson's disease, circulatory disorders, cancers ^[2] .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-12710

Rauwolscine α-Yohimbine; Corynanthidine; Isoyohimbine	Apocynaceae Rauvolfia tetraphylla Linn. Alkaloids Structural Classification Source classification Plants Indole Alkaloids	Adrenergic Receptor
Rauwolscine is a selective *α2-adrenoceptor* antagonist that inhibits tumor growth and induces apoptosis .

HY-N1163

Tetrahydroalstonine	Apocynaceae Alkaloids Source classification Plants Indole Alkaloids Catharanthus roseus (L.) G. Don	Adrenergic Receptor
Tetrahydroalstonine, a indole alkaloid isolated from the fruits of Rhazya stricta, is a selective *alpha 2-adrenoceptor* antagonist ^[2].

HY-B0528A

Octopamine hydrochloride 1 Publications Verification (±)-p-Octopamine hydrochloride	Structural Classification Monophenols Neurological Disease Classification of Application Fields Source classification Phenols Endogenous metabolite Disease Research Fields Endocrinology	Adrenergic Receptor Endogenous Metabolite
Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure ^[2] .

HY-N3298

Meranzin	Cardiovascular Disease other families Classification of Application Fields Neurological Disease Source classification Coumarins Phenylpropanoids Plants Disease Research Fields	Adrenergic Receptor
Meranzin is an absorbed bioactive compound from the Traditional Chinese Medicine (TCM) Chaihu-Shugan-San (CSS). Meranzin, isolated from leaves of Murraya exotica L., regulates the shared alpha 2-adrenoceptor and involves the AMPA-ERK1/2–BDNF signaling pathway. Meranzin has the potential for the prevention of the comorbidity of atherosclerosis and depression ^[2].

HY-136935

Alloyohimbine	Apocynaceae Alkaloids Structural Classification Source classification Alstonia scholaris (L.) R. Br. Plants Indole Alkaloids	Adrenergic Receptor
Alloyohimbine, an alkaloid, is a selective *α2-adrenoceptor* antagonist with K_Dα1, K_Dα2 of 0.28 μM and 0.006 μM, respectively .

HY-101392R

Harmane (Standard)	Structural Classification Alkaloids other families Source classification Plants	Imidazoline Receptor Monoamine Oxidase Adrenergic Receptor
Harmane (Standard) is the analytical standard of Harmane. This product is intended for research and analytical applications. Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC₅₀=30 nM) over *α2-adrenoceptor* (IC₅₀=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC₅₀s=0.5 and 5 μM for human MAO A/B, respectively). Harmane exhibits comutagenic effect ^[2] .

HY-B0528AR

Octopamine hydrochloride (Standard)	Structural Classification Monophenols Source classification Phenols Endogenous metabolite	Adrenergic Receptor Endogenous Metabolite
Octopamine (hydrochloride) (Standard) is the analytical standard of Octopamine (hydrochloride). This product is intended for research and analytical applications. Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure ^[2] .

HY-N3298R

Meranzin (Standard)	Structural Classification other families Source classification Coumarins Phenylpropanoids Plants	Adrenergic Receptor
Meranzin (Standard) is the analytical standard of Meranzin. This product is intended for research and analytical applications. Meranzin is an absorbed bioactive compound from the Traditional Chinese Medicine (TCM) Chaihu-Shugan-San (CSS). Meranzin, isolated from leaves of Murraya exotica L., regulates the shared alpha 2-adrenoceptor and involves the AMPA-ERK1/2–BDNF signaling pathway. Meranzin has the potential for the prevention of the comorbidity of atherosclerosis and depression ^[2].

Cat. No.	Product Name	Chemical Structure

HY-101392S

Harmane-d1

Harmane-d is the deuterium labeled Harmane. Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC50=30 nM) over α2-adrenoceptor (IC50=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC50s=0.5 and 5 μM for human MAO A/B, respectively)[1][2][3][4].

HY-B0528AS

Octopamine-d4 hydrochloride

Octopamine-d₄ (hydrochloride) is the deuterium labeled Octopamine hydrochloride. Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure[1][2][3].

HY-B0409S

Clonidine-d4
Clonidine-d₄ is the deuterium labeled Clonidine. Clonidine hydrochloride is an agonist of α2-adrenoceptor and potent antihypertensive agent[1][2][3][4][5].

HY-17034BS1

Medetomidine-13C,d3 hydrochloride
Medetomidine-13C,d3 (hydrochloride) is a deuterated labeled Medetomidine (hydrochloride) . Medetomidine hydrochloride is an orally active *α2-adrenoceptor* agonist (K_i: 1.08 nM). Medetomidine hydrochloride has sedative and analgesic effects. Medetomidine hydrochloride can cause peripheral vasoconstriction through the activation of α2 adrenoceptors on blood vessels ^[2] .

HY-17034AS

Dexmedetomidine-13C,d3 hydrochloride

Dexmedetomidine- ¹³C,d₃ (hydrochloride) is the ¹³C- and deuterium labeled Dexmedetomidine (hydrochloride). Dexmedetomidine hydrochloride ((+)-Medetomidine hydrochloride) is a potent, selective and orally active agonist of α2-adrenoceptor, with a Ki of 1.08 nM. Dexmedetomidine hydrochloride shows 1620-fold selectivity against α1-adrenoceptor. Dexmedetomidine hydrochloride exhibits anxiolysis, sedation, and modest analgesia effects[1][2][3].

HY-B0352S2

Mirtazapine-d4
Mirtazapine-d₄ is deuterium labeled Mirtazapine. Mirtazapine (Org3770) is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent. Mirtazapine is also a 5-HT2, 5-HT3, histamine H1 receptor and α2-adrenoceptor antagonist with pKi values of 8.05, 8.1, 9.3 and 6.95, respectively[1][2].

HY-B0352S3

Mirtazapine-d4 hydrochloride
Mirtazapine-d₄ hydrochloride is deuterated labeled Mirtazapine (HY-B0352). Mirtazapine (Org3770) is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent. Mirtazapine is also a *5-HT₂, 5-HT₃, histamine H1 receptor* and *α2-adrenoceptor* antagonist with pK_i values of 8.05, 8.1, 9.3 and 6.95, respectively ^[2].

HY-101392S1

Harmane-d2

Harmane-d₂ is the deuterium labeled Harmane. Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC50=30 nM) over α2-adrenoceptor (IC50=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC50s=0.5 and 5 μM for human MAO A/B, respectively)[1][2][3][4].

HY-100490S

Rilmenidine-d4

Rilmenidine-d₄ is the deuterium labeled Rilmenidine. Rilmenidine, an innovative antihypertensive agent, is an orally active, selective I1 imidazoline receptor agonist. Rilmenidine is an alpha 2-adrenoceptor agonist. Rilmenidine induces autophagy. Rilmenidine acts both centrally by reducing sympathetic overactivity and in the kidney by inhibiting the Na+/H+ antiport. Rilmenidine modulates proliferation and stimulates the proapoptotic protein Bax thus inducing the perturbation of the mitochondrial pathway and apoptosis in human leukemic K562 cells[1][2][3].

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