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Results for "

H1 receptor antagonist

" in MedChemExpress (MCE) Product Catalog:

By Targets:	5-HT Receptor (31) Adrenergic Receptor (26) Amyloid-β (2) Angiotensin Receptor (1) Apoptosis (16) Autophagy (6) Bacterial (6) Calcium Channel (4) Caspase (2) Cytochrome P450 (4) Dopamine Receptor (18) Drug Metabolite (8) Endogenous Metabolite (23) FAK (2) HCV (3) HCV Protease (2) Histamine Receptor (212) iGluR (3) Integrin (3) Isotope-Labeled Compounds (31) Leukotriene Receptor (2) Lipoxygenase (1) mAChR (15) Macrophage migration inhibitory factor (MIF) (1) mGluR (2) Mitophagy (5) Na+/Ca2+ Exchanger (2) Neurotensin Receptor (3) P2X Receptor (2) Phosphodiesterase (PDE) (3) Platelet-activating Factor Receptor (PAFR) (1) Potassium Channel (9) Serotonin Transporter (1) Sodium Channel (4) TNF Receptor (1) TRP Channel (3) VEGFR (2)
By Research Areas:	Cancer (42) Cardiovascular Disease (10) Endocrinology (110) Infection (3) Inflammation/Immunology (159) Metabolic Disease (2) Neurological Disease (86)

By Targets:

5-HT Receptor (31)

Adrenergic Receptor (26)

Amyloid-β (2)

Angiotensin Receptor (1)

Apoptosis (16)

Autophagy (6)

Bacterial (6)

Calcium Channel (4)

Caspase (2)

Cytochrome P450 (4)

Dopamine Receptor (18)

Drug Metabolite (8)

Endogenous Metabolite (23)

FAK (2)

HCV (3)

HCV Protease (2)

Histamine Receptor (212)

iGluR (3)

Integrin (3)

Isotope-Labeled Compounds (31)

Leukotriene Receptor (2)

Lipoxygenase (1)

mAChR (15)

Macrophage migration inhibitory factor (MIF) (1)

mGluR (2)

Mitophagy (5)

Na+/Ca2+ Exchanger (2)

Neurotensin Receptor (3)

P2X Receptor (2)

Phosphodiesterase (PDE) (3)

Platelet-activating Factor Receptor (PAFR) (1)

Potassium Channel (9)

Serotonin Transporter (1)

Sodium Channel (4)

TNF Receptor (1)

TRP Channel (3)

VEGFR (2)

By Research Areas:

Cancer (42)

Cardiovascular Disease (10)

Endocrinology (110)

Infection (3)

Inflammation/Immunology (159)

Metabolic Disease (2)

Neurological Disease (86)

240

Inhibitors & Agonists

Natural
Products

Isotope-Labeled Compounds

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-B1067A

Antazoline Phenazoline	Histamine Receptor	Neurological Disease
Antazoline (Phenazoline) is an H1 receptor antagonist that affects the activity of the central nervous system, has a potent antiarrhythmic effect .

HY-B0781

Promethazine hydrochloride 1 Publications Verification	Histamine Receptor mAChR Adrenergic Receptor	Neurological Disease Endocrinology
Promethazine hydrochloride is an orally active phenothiazine derivative with antihistaminic (H1), sedative, antiemetic, anticholinergic, and antimotion sickness properties. Promethazine hydrochloride is a potent H1 receptor antagonist and a mAChR antagonist. It also has a certain affinity for 5-HT2A and 5-HT2C receptors .

HY-119832B

(S)-Setastine (S)-EGIS-2062 free acid; (S)-EGYT-2062 free acid	Histamine Receptor	Inflammation/Immunology
(S)-Setastine ((S)-EGIS-2062 free acid) is a non-sedating, highly potent antagonist of H1 receptor-mediated responses. (S)-Setastine has a long-lasting antihistamine effect and good oral efficacy. (S)-Setastine can be used in the research of allergic diseases .

HY-B1281

Mepyramine maleate 2 Publications Verification Pyrilamine maleate	Histamine Receptor	Neurological Disease Endocrinology
Mepyramine maleate, a first generation antihistamine, is an antagonist of histamine H1 receptor, with K_ds of 0.8 nM, 5200 nM and >3000 nM for H1, H2, and H3 receptor, respectively, and a pK_d of 9.4 for H1 receptor.

HY-B1589A

Carbinoxamine maleate salt 1 Publications Verification	Histamine Receptor	Neurological Disease Endocrinology
Carbinoxamine maleate salt is a histamine H1 receptor antagonist.

HY-B1303A

Mebhydrolin	Histamine Receptor	Inflammation/Immunology Endocrinology
Mebhydrolin is a specific histamine H₁ receptor antagonist.

HY-B1067B

Antazoline phosphate Phenazoline phosphate	Histamine Receptor	Neurological Disease
Antazoline phosphate is an H1 receptor antagonist that affects the activity of the central nervous system, has a potent antiarrhythmic effect .

HY-B0781R

Promethazine (hydrochloride) (Standard)	Histamine Receptor mAChR Adrenergic Receptor	Neurological Disease Endocrinology
Promethazine (hydrochloride) (Standard) is the analytical standard of Promethazine (hydrochloride). This product is intended for research and analytical applications. Promethazine hydrochloride is an orally active phenothiazine derivative with antihistaminic (H1), sedative, antiemetic, anticholinergic, and antimotion sickness properties. Promethazine hydrochloride is a potent H1 receptor antagonist and a mAChR antagonist. It also has a certain affinity for 5-HT2A and 5-HT2C receptors .

HY-B1067AR

Antazoline (Standard)	Histamine Receptor	Neurological Disease
Antazoline (Standard) is the analytical standard of Antazoline. This product is intended for research and analytical applications. Antazoline (Phenazoline) is an H1 receptor antagonist that affects the activity of the central nervous system, has a potent antiarrhythmic effect .

HY-100280

Pirolate CP-32387	Histamine Receptor	Inflammation/Immunology Endocrinology
Pirolate is a histamine H1 receptor antagonist.

HY-B1589

(±)-Carbinoxamine	Histamine Receptor	Neurological Disease
(±)-Carbinoxamine is a histamine H1 receptor antagonist .

HY-129783

Phenindamine tartrate	Histamine Receptor	Inflammation/Immunology
Phenindamine tartrate is a Histamine H1-receptor antagonist. Phenindamine tartrate is an antihistamine .

HY-B1281R

Mepyramine maleate (Standard)	Histamine Receptor	Neurological Disease Endocrinology
Mepyramine maleate (Standard) is the analytical standard of Mepyramine maleate. This product is intended for research and analytical applications. Mepyramine maleate, a first generation antihistamine, is an antagonist of histamine H1 receptor, with Kds of 0.8 nM, 5200 nM and >3000 nM for H1, H2, and H3 receptor, respectively, and a pKd of 9.4 for H1 receptor.

HY-B1303

Mebhydrolin napadisylate Mebhydroline 1,5-naphthalenedisulfonate salt	Histamine Receptor	Inflammation/Immunology Endocrinology
Mebhydrolin napadisylate is a specific histamine H₁ receptor antagonist.

HY-402545

(-)-Brompheniramine (R)-Brompheniramine	Histamine Receptor	Inflammation/Immunology
(-)-Brompheniramine is a H1 receptor antagonist with antiallergic activity .

HY-B0548S1

Hydroxyzine D8	Histamine Receptor	Inflammation/Immunology Endocrinology
Hydroxyzine-d₈ is deuterium labeled Hydroxyzine. Hydroxyzine is a histamine H1-receptor antagonist[1].

HY-U00018

(±)-Tazifylline	Histamine Receptor	Neurological Disease Endocrinology
(±)-Tazifylline is a potent, selective and long-acting histamine H1 receptor antagonist.

HY-B0814

Levocetirizine 1 Publications Verification (R)-Cetirizine	Histamine Receptor	Inflammation/Immunology Endocrinology Cancer
Levocetirizine ((R)-Cetirizine) is a third-generation peripheral H1-receptor antagonist. Levocetirizine is an antihistaminic agent which is the R-enantiomer of Cetirizine. Levocetirizine has a higher affinity for the histamine H1-receptor than (S)-Cetirizine and can effectively treat allergic rhinitis and chronic idiopathic urticaria .

HY-W010841

Levocetirizine dihydrochloride 1 Publications Verification (R)-Cetirizine dihydrochloride	Histamine Receptor	Inflammation/Immunology Endocrinology Cancer
Levocetirizine dihydrochloride ((R)-Cetirizine dihydrochloride) is a third-generation peripheral H1-receptor antagonist. Levocetirizine dihydrochloride is an antihistaminic agent which is the R-enantiomer of Cetirizine. Levocetirizine dihydrochloride has a higher affinity for the histamine H1-receptor than (S)-Cetirizine and can effectively treat allergic rhinitis and chronic idiopathic urticaria .

HY-101830

Wy 49051	Histamine Receptor	Inflammation/Immunology Endocrinology
Wy 49051 is a potent, orally active H1 receptor antagonist, with IC₅₀ of 44 nM.

HY-B0286A

Chlorpheniramine maleate 2 Publications Verification Chlorphenamine maleate	Histamine Receptor	Inflammation/Immunology Endocrinology
Chlorpheniramine maleate is a histamine H1 receptor antagonist with an IC₅₀ of 12 nM .

HY-B0298A

Clemastine fumarate 5+ Cited Publications HS-592 fumarate; Meclastine fumarate	Histamine Receptor	Neurological Disease Endocrinology
Clemastine (HS-592) fumarate is a selective histamine H1 receptor antagonist. Clemastine fumarate is an antihistamine mainly used for relieving symptoms of allergic reactions primarily by competing with histamine to bind H1 receptors. Anti-inflammatory effects .

HY-B0539S

Desloratadine-d4 Sch34117-d₄	Histamine Receptor Endogenous Metabolite	Inflammation/Immunology Endocrinology
Desloratadine-d₄ is the deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-B0539S1

Desloratadine-d9 Sch34117-d₉	Histamine Receptor Endogenous Metabolite	Inflammation/Immunology Endocrinology
Desloratadine-d₉ is the deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-B0539S3

Desloratadine-d5 Sch34117-d₅	Isotope-Labeled Compounds Histamine Receptor Endogenous Metabolite	Inflammation/Immunology Endocrinology
Desloratadine-d₅ is deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-B0298

Clemastine HS-592; Meclastine	Histamine Receptor	Neurological Disease
Clemastine (HS-592) is a potent and orally active histamine receptor H1 antagonist. Clemastine is an antihistamine mainly used for relieving symptoms of allergic reactions primarily by competing with histamine to bind H1 receptors. Anti-inflammatory effects .

HY-B1589AS

Carbinoxamine-d6 maleate	Isotope-Labeled Compounds Histamine Receptor	Neurological Disease Endocrinology
Carbinoxamine-d₆ (maleate) is the deuterium labeled Carbinoxamine maleate salt. Carbinoxamine maleate salt is a histamine H1 receptor antagonist.

HY-B0539R

Desloratadine (Standard) Sch34117 (Standard)	Histamine Receptor Endogenous Metabolite Drug Metabolite	Inflammation/Immunology Endocrinology Cancer
Desloratadine (Standard) is the analytical standard of Desloratadine. This product is intended for research and analytical applications. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating *H1-antihistamine* Loratadine. Desloratadine is a selective *H1-receptor* antagonist that has anti-allergic and anti-inflammatory activities .

HY-105542

Niaprazine	Histamine Receptor	Neurological Disease
Niaprazine is a histamine H1-receptor antagonist. Niaprazine has antihistamine and antiserotonin activities and can be used for sleep disorder research .

HY-101724

ReN-1869 hydrochloride NNC-05-1869 hydrochloride	Histamine Receptor	Inflammation/Immunology Endocrinology
ReN 1869 hydrochloride is a novel, selective histamine H₁ receptor antagonist, which demonstrates affinity to the histamine H₁ receptor (guinea pig brain) with K_i of 0.19±0.04 μM and the non-selective σ site (guinea pig brain) with K_i of 0.45 μM.

HY-U00084

SUN 1334H	Histamine Receptor	Inflammation/Immunology Endocrinology
SUN 1334H is a potent, orally active, highly selective H1 receptor antagonist, with K_i of 9.7 nM.

HY-A0178A

Isothipendyl hydrochloride NSC 169186	Endogenous Metabolite Histamine Receptor	Inflammation/Immunology
Isothipendyl hydrochloride (), an azaphenothiazine derivative, is a potent histamine 1 (H1) receptor antagonist.othipendyl is a primary metabolite .

HY-W701635

Meclizine N-oxide	Histamine Receptor	Neurological Disease
Meclizine N-oxide is a metabolite of the histamine H1 receptor antagonist Meclizine (HY-B0349A).

HY-B0539S4

Desloratadine-d4 hydrobromide Sch34117-d₄ hydrobromide	Histamine Receptor Endogenous Metabolite Drug Metabolite Isotope-Labeled Compounds	Inflammation/Immunology Endocrinology Cancer
Desloratadine-d₄ hydrobromide is deuterated labeled Desloratadine (HY-B0539). Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating *H1-antihistamine* Loratadine. Desloratadine is a selective *H1-receptor* antagonist that has anti-allergic and anti-inflammatory activities .

HY-B0814S

Levocetirizine-d4 dihydrochloride (R)-Cetirizine-d₄(dihydrochloride)	Isotope-Labeled Compounds Histamine Receptor	Inflammation/Immunology Endocrinology
Levocetirizine-d₄ (dihydrochloride) is the deuterium labeled Levocetirizine. Levocetirizine ((R)-Cetirizine) is a third-generation peripheral H1-receptor antagonist. Levocetirizine is an antihistaminic agent which is the R-enantiomer of Cetirizine. Levocetirizine has a higher affinity for the histamine H1-receptor than (S)-Cetirizine and can effectively treat allergic rhinitis and chronic idiopathic urticaria[1].

HY-123829

LY2624803	Histamine Receptor 5-HT Receptor	Inflammation/Immunology
LY2624803 is a 5-HT2A and histamine, H1 receptor antagonist .

HY-B0539S2

Desloratadine-3,3,5,5-d4	Histamine Receptor Endogenous Metabolite	Inflammation/Immunology Endocrinology
Desloratadine-3,3,5,5-d₄ is the deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-W010841R

Levocetirizine (dihydrochloride) (Standard) (R)-Cetirizine (dihydrochloride) (Standard)	Histamine Receptor	Inflammation/Immunology Endocrinology
Levocetirizine (dihydrochloride) (Standard) is the analytical standard of Levocetirizine (dihydrochloride). This product is intended for research and analytical applications. Levocetirizine dihydrochloride ((R)-Cetirizine dihydrochloride) is a third-generation peripheral H1-receptor antagonist. Levocetirizine dihydrochloride is an antihistaminic agent which is the R-enantiomer of Cetirizine. Levocetirizine dihydrochloride has a higher affinity for the histamine H1-receptor than (S)-Cetirizine and can effectively treat allergic rhinitis and chronic idiopathic urticaria .

HY-B0303A

Diphenhydramine hydrochloride 5 Publications Verification	Histamine Receptor Endogenous Metabolite Bacterial Apoptosis	Inflammation/Immunology Endocrinology Cancer
Diphenhydramine hydrochloride is a first-generation histamine H1-receptor antagonist with anti-cholinergic effect. Diphenhydramine hydrochloride can across the ovine blood-brain barrier (BBB) .

HY-19489S

(±)-Levomepromazine-d6 (±)-Methotrimeprazine-d₆; dl-Methotrimeprazine-d₆	Dopamine Receptor Histamine Receptor	Neurological Disease
(±)-Levomepromazine-d₆ is the deuterium labeled Methotrimeprazine, which is a D3 dopamine and Histamine H1 receptor antagonist.

HY-B1305

Chloropyramine hydrochloride	FAK Histamine Receptor VEGFR	Endocrinology Cancer
Chloropyramine hydrochloride is a *histamine receptor* H1** antagonist which can also inhibit the biochemical function of VEGFR-3 and FAK.

HY-A0178

Isothipendyl AY 56012	Histamine Receptor Endogenous Metabolite	Inflammation/Immunology
Isothipendyl (AY 56012), an azaphenothiazine derivative, is a potent histamine 1 (H1) receptor antagonist. Isothipendyl is a primary metabolite .

HY-B1589AR

Carbinoxamine maleate salt (Standard)	Histamine Receptor	Neurological Disease Endocrinology
Carbinoxamine maleate salt (Standard) is the analytical standard of Carbinoxamine maleate salt. This product is intended for research and analytical applications. Carbinoxamine maleate salt is a histamine H1 receptor antagonist.

HY-W653762

Cetirizine N-oxide	Histamine Receptor	Neurological Disease Inflammation/Immunology
Cetirizine N-oxide is an oxidative degradation product of the histamine H1 receptor antagonist Cetirizine (HY-17042) .

HY-B0548AS

Hydroxyzine D4 dihydrochloride	Histamine Receptor	Neurological Disease Inflammation/Immunology Endocrinology
Hydroxyzine-d₄ (dihydrochloride) is deuterium labeled Hydroxyzine. Hydroxyzine is a heterocyclic histamine H1-receptor antagonist. Hydroxyzine has anticholinergic, anxiolytic and analgesic properties[1].

HY-B0303

Diphenhydramine 5 Publications Verification	Histamine Receptor Bacterial Endogenous Metabolite iGluR	Neurological Disease Inflammation/Immunology Cancer
Diphenhydramine is a first-generation histamine H1-receptor antagonist with anti-cholinergic effect. Diphenhydramine hydrochloride can across the ovine blood-brain barrier (BBB) .

HY-B0298AR

Clemastine (fumarate) (Standard) HS-592 (fumarate) (Standard); Meclastine (fumarate) (Standard)	Histamine Receptor	Neurological Disease Endocrinology
Clemastine (fumarate) (Standard) is the analytical standard of Clemastine (fumarate). This product is intended for research and analytical applications. Clemastine (HS-592) fumarate is a selective histamine H1 receptor antagonist. Clemastine fumarate is an antihistamine mainly used for relieving symptoms of allergic reactions primarily by competing with histamine to bind H1 receptors. Anti-inflammatory effects .

HY-105014

Tecastemizole Norastemizole	Histamine Receptor	Inflammation/Immunology
Tecastemizole (Norastemizole), a major metabolite of Astemizole, is a potent and selective H1 receptor antagonist. Tecastemizole shows anti-inflammatory activities .

HY-B0524A

Betahistine dihydrochloride	Histamine Receptor	Neurological Disease Inflammation/Immunology Endocrinology
Betahistine dihydrochloride is an orally active histamine H1 receptor agonist and a H3 receptor antagonist . Betahistine dihydrochloride is used for the study of rheumatoid arthritis (RA) .

HY-B0524

Betahistine	Histamine Receptor	Inflammation/Immunology Cancer
Betahistine is an orally active histamine H1 receptor agonist and a H3 receptor antagonist . Betahistine is used for the study of rheumatoid arthritis (RA) .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-B0303A

Diphenhydramine hydrochloride 5 Publications Verification	Structural Classification Alkaloids Classification of Application Fields Other Alkaloids Source classification Endogenous metabolite Inflammation/Immunology Disease Research Fields	Histamine Receptor Endogenous Metabolite Bacterial Apoptosis
Diphenhydramine hydrochloride is a first-generation histamine H1-receptor antagonist with anti-cholinergic effect. Diphenhydramine hydrochloride can across the ovine blood-brain barrier (BBB) .

HY-B0303

Diphenhydramine 5 Publications Verification	Structural Classification Alkaloids Classification of Application Fields Other Alkaloids Source classification Endogenous metabolite Inflammation/Immunology Disease Research Fields	Histamine Receptor Bacterial Endogenous Metabolite iGluR
Diphenhydramine is a first-generation histamine H1-receptor antagonist with anti-cholinergic effect. Diphenhydramine hydrochloride can across the ovine blood-brain barrier (BBB) .

HY-17428

Tripelennamine hydrochloride	Structural Classification Alkaloids Classification of Application Fields Source classification Pyridine Alkaloids Endogenous metabolite Inflammation/Immunology Disease Research Fields	Histamine Receptor Endogenous Metabolite
Tripelennamine hydrochloride, an ethylenediamine derivative, is a potent histamine *H1-receptor* antagonist. Tripelennamine hydrochloride lessens the allergic response of the organism caused by histamine. Tripelennamine hydrochloride can be used for the research of rhinitis, conjunctivitis, and allergic and anaphylactic reactions .

HY-A0191

Dexbrompheniramine (+)-Brompheniramine; (S)-Brompheniramine	Structural Classification Natural Products Classification of Application Fields Source classification Endogenous metabolite Inflammation/Immunology Disease Research Fields	Endogenous Metabolite Histamine Receptor
Dexbrompheniramine is an orally active H1 receptor antagonist. Dexbrompheniramine is an antihistamine that reduces the effects of natural chemical histamine. Dexbrompheniramine can be used for the research of hay fever and urticaria .

HY-17042

Cetirizine 2 Publications Verification	Classification of Application Fields Ketones, Aldehydes, Acids Source classification Endogenous metabolite Disease Research Fields Endocrinology	Histamine Receptor
Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine *H1-receptor* antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response .

HY-B0539R

Desloratadine (Standard) Sch34117 (Standard)	Structural Classification Natural Products Classification of Application Fields Source classification Endogenous metabolite Disease Research Fields Endocrinology	Histamine Receptor Endogenous Metabolite Drug Metabolite
Desloratadine (Standard) is the analytical standard of Desloratadine. This product is intended for research and analytical applications. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating *H1-antihistamine* Loratadine. Desloratadine is a selective *H1-receptor* antagonist that has anti-allergic and anti-inflammatory activities .

HY-A0178

Isothipendyl AY 56012	Structural Classification Alkaloids Classification of Application Fields Source classification Pyridine Alkaloids Endogenous metabolite Inflammation/Immunology Disease Research Fields	Histamine Receptor Endogenous Metabolite
Isothipendyl (AY 56012), an azaphenothiazine derivative, is a potent histamine 1 (H1) receptor antagonist. Isothipendyl is a primary metabolite .

HY-17428A

Tripelennamine	Structural Classification Alkaloids Classification of Application Fields Source classification Pyridine Alkaloids Endogenous metabolite Inflammation/Immunology Disease Research Fields Endocrinology	Histamine Receptor Endogenous Metabolite
Tripelennamine, an ethylenediamine derivative, is a potent histamine *H1-receptor* antagonist. Tripelennamine lessens the allergic response of the organism caused by histamine. Tripelennamine can be used for the research of rhinitis, conjunctivitis, and allergic and anaphylactic reactions .

HY-17428B

Tripelennamine citrate	Structural Classification Alkaloids Classification of Application Fields Source classification Pyridine Alkaloids Endogenous metabolite Inflammation/Immunology Disease Research Fields Endocrinology	Histamine Receptor Endogenous Metabolite
Tripelennamine citrate, an ethylenediamine derivative, is a potent histamine *H1-receptor* antagonist. Tripelennamine citrate lessens the allergic response of the organism caused by histamine. Tripelennamine citrate can be used for the research of rhinitis, conjunctivitis, and allergic and anaphylactic reactions .

HY-B0303R

Diphenhydramine (Standard)	Structural Classification Alkaloids Other Alkaloids Source classification Endogenous metabolite	Histamine Receptor Bacterial Endogenous Metabolite iGluR
Diphenhydramine (Standard) is the analytical standard of Diphenhydramine. This product is intended for research and analytical applications. Diphenhydramine is a first-generation histamine H1-receptor antagonist with anti-cholinergic effect. Diphenhydramine hydrochloride can across the ovine blood-brain barrier (BBB) .

HY-A0019

Paliperidone 3 Publications Verification 9-Hydroxyrisperidone	Structural Classification Natural Products Source classification Endogenous metabolite	Drug Metabolite Dopamine Receptor 5-HT Receptor Adrenergic Receptor
Paliperidone (9-Hydroxyrisperidone), the major active metabolite of Risperidone, is a dopamine D2 antagonist and 5-HT2A antagonist. Paliperidone is also active as an antagonist at α1 and α2 adrenergic receptors and *H1-histaminergic* receptors. Paliperidone, a antipsychotic agent, shows efficacy against schizophrenia .

HY-17428R

Tripelennamine (hydrochloride) (Standard)	Structural Classification Alkaloids Source classification Pyridine Alkaloids Endogenous metabolite	Histamine Receptor Endogenous Metabolite
Tripelennamine (hydrochloride) (Standard) is the analytical standard of Tripelennamine (hydrochloride). This product is intended for research and analytical applications. Tripelennamine hydrochloride, an ethylenediamine derivative, is a potent histamine *H1-receptor* antagonist. Tripelennamine hydrochloride lessens the allergic response of the organism caused by histamine. Tripelennamine hydrochloride can be used for the research of rhinitis, conjunctivitis, and allergic and anaphylactic reactions .

HY-17042R

Cetirizine (Standard)	Structural Classification Ketones, Aldehydes, Acids Source classification Endogenous metabolite	Histamine Receptor
Cetirizine (Standard) is the analytical standard of Cetirizine. This product is intended for research and analytical applications. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine *H1-receptor* antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response .

HY-A0019R

Paliperidone (Standard)	Structural Classification Natural Products Source classification Endogenous metabolite	Drug Metabolite Dopamine Receptor 5-HT Receptor Adrenergic Receptor
Paliperidone (Standard) is the analytical standard of Paliperidone. This product is intended for research and analytical applications. Paliperidone (9-Hydroxyrisperidone), the major active metabolite of Risperidone, is a dopamine D2 antagonist and 5-HT2A antagonist. Paliperidone is also active as an antagonist at α1 and α2 adrenergic receptors and *H1-histaminergic* receptors. Paliperidone, a antipsychotic agent, shows efficacy against schizophrenia .

HY-W062109

Olopatadine	Structural Classification Alkaloids Classification of Application Fields Other Alkaloids Source classification Endogenous metabolite Inflammation/Immunology Disease Research Fields	Endogenous Metabolite Histamine Receptor
Olopatadine is an orally active and selective histamine 1 (H₁) receptor antagonist and a mast cell stabilizer. Olopatadine prevents immunologically stimulated pro-inflammatory mediator release from human conjunctival mast cells. Olopatadine can be used for researching allergic conjunctivitis .

HY-A0027

Fenspiride hydrochloride	Classification of Application Fields Disease Research Fields Endocrinology	Histamine Receptor Phosphodiesterase (PDE)
Fenspiride, an orally active non-steroidal antiinflammatory agent, is an antagonist of H1-histamine receptor. Fenspiride inhibites phosphodiesterase 3 (PDE3), phosphodiesterase 4 (PDE4) and phosphodiesterase 5 (PDE5) activities with -log IC₅₀ values of 3.44, 4.16 and approximately 3.8, respectively. Fenspiride can be used for the research of respiratory diseases .

HY-B0539

Desloratadine Maximum Cited Publications 10 Publications Verification Sch34117	Structural Classification Natural Products Classification of Application Fields Endogenous metabolite Disease Research Fields Endocrinology	Histamine Receptor TNF Receptor Leukotriene Receptor
Desloratadine (Sch34117) is an orally active and selective H1 receptor antagonist (K_i=0.9 nM) with anti-inflammatory and anti-allergic activities. Desloratadine inhibits the release of histamine and LTC4 from human basophils and targets the regulatory signals of IL-4 and IL-13 production in basophils. Desloratadine significantly alleviates SAR symptoms in patients with concurrent asthma and can be used in the study of seasonal allergic rhinitis and chronic idiopathic urticaria .

Cat. No.	Product Name	Chemical Structure

HY-B0548S1

Hydroxyzine D8
Hydroxyzine-d₈ is deuterium labeled Hydroxyzine. Hydroxyzine is a histamine H1-receptor antagonist[1].

HY-19489S

(±)-Levomepromazine-d6
(±)-Levomepromazine-d₆ is the deuterium labeled Methotrimeprazine, which is a D3 dopamine and Histamine H1 receptor antagonist.

HY-B0539S

Desloratadine-d4
Desloratadine-d₄ is the deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-B0539S1

Desloratadine-d9
Desloratadine-d₉ is the deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-B0539S3

Desloratadine-d5
Desloratadine-d₅ is deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-B1589AS

Carbinoxamine-d6 maleate
Carbinoxamine-d₆ (maleate) is the deuterium labeled Carbinoxamine maleate salt. Carbinoxamine maleate salt is a histamine H1 receptor antagonist.

HY-B0539S4

Desloratadine-d4 hydrobromide
Desloratadine-d₄ hydrobromide is deuterated labeled Desloratadine (HY-B0539). Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating *H1-antihistamine* Loratadine. Desloratadine is a selective *H1-receptor* antagonist that has anti-allergic and anti-inflammatory activities .

HY-B0814S

Levocetirizine-d4 dihydrochloride

Levocetirizine-d₄ (dihydrochloride) is the deuterium labeled Levocetirizine. Levocetirizine ((R)-Cetirizine) is a third-generation peripheral H1-receptor antagonist. Levocetirizine is an antihistaminic agent which is the R-enantiomer of Cetirizine. Levocetirizine has a higher affinity for the histamine H1-receptor than (S)-Cetirizine and can effectively treat allergic rhinitis and chronic idiopathic urticaria[1].

HY-B0539S2

Desloratadine-3,3,5,5-d4
Desloratadine-3,3,5,5-d₄ is the deuterium labeled Desloratadine. Desloratadine (Sch34117) is the orally active major metabolite of the nonsedating H1-antihistamine Loratadine. Desloratadine is a selective H1-receptor antagonist that has anti-allergic and anti-inflammatory activities[1][2].

HY-B0548AS

Hydroxyzine D4 dihydrochloride
Hydroxyzine-d₄ (dihydrochloride) is deuterium labeled Hydroxyzine. Hydroxyzine is a heterocyclic histamine H1-receptor antagonist. Hydroxyzine has anticholinergic, anxiolytic and analgesic properties[1].

HY-B0781S1

Promethazine-d3 hydrochloride

Promethazine-d₃ (hydrochloride) is deuterium labeled Promethazine (hydrochloride). Promethazine hydrochloride is an orally active phenothiazine derivative with antihistaminic (H1), sedative, antiemetic, anticholinergic, and antimotion sickness properties. Promethazine hydrochloride is a potent H1 receptor antagonist and a mAChR antagonist. It also has a certain affinity for 5-HT2A and 5-HT2C receptors .

HY-B1296S1

Promethazine-d4
Promethazine-d4 is a deuterated-labeled promethazine (HY-B0781). Promethazine is an orally active H1 receptor and mAChR antagonist with antihistamine (H1), sedative, antiemetic, anticholinergic, and anti-motion sickness properties .

HY-B0814S1

Levocetirizine-d4

Levocetirizine-d₄ ((R)-Cetirizine-d₄) is the deuterium-labeled Levocetirizine (HY-B0814) . Levocetirizine ((R)-Cetirizine) is a third-generation peripheral H1-receptor antagonist. Levocetirizine is an antihistaminic agent which is the R-enantiomer of Cetirizine. Levocetirizine has a higher affinity for the histamine H1-receptor than (S)-Cetirizine and can effectively treat allergic rhinitis and chronic idiopathic urticaria .

HY-B0298AS

Clemastine-d5 fumarate 1 Publications Verification
Clemastine-d₅ (fumarate) is the deuterium labeled Clemastine fumarate. Clemastine fumarate (HS-592 fumarate) is a selective histamine H1 receptor antagonist with IC50 of 3 nM.

HY-30234S

Clemizole-d4
Clemizole-d4 is a deuterium labeled Clemizole. Clemizole is an H1 histamine receptor antagonist, is found to substantially inhibit HCV replication .

HY-B0524AS

Betahistine-d3 dihydrochloride
Betahistine-d₃ (dihydrochloride) is the deuterium labeled Betahistine dihydrochloride. Betahistine dihydrochloride is an orally active histamine H1 receptor agonist and a H3 receptor antagonist[1]. Betahistine dihydrochloride is used for the study of rheumatoid arthritis (RA)[3].

HY-14447S

Bilastine-d6
Bilastine-d₆ is the deuterium labeled Bilastine. Bilastine is a selective histamine H1 receptor antagonist used for treatment of allergic rhinoconjunctivitis and urticaria[1][2].

HY-B0303AS1

Diphenhydramine-d5 hydrochloride
Diphenhydramine-d₅ (hydrochloride) is the deuterium labeled Diphenhydramine hydrochloride. Diphenhydramine hydrochloride is a first-generation histamine H1-receptor antagonist with anti-cholinergic effect. Diphenhydramine hydrochloride can across the ovine blood-brain barrier (BBB)[1][2].

HY-B0303AS

Diphenhydramine-d6 hydrochloride
Diphenhydramine-d₆ (hydrochloride) is the deuterium labeled Diphenhydramine hydrochloride. Diphenhydramine hydrochloride is a first-generation histamine H1-receptor antagonist with anti-cholinergic effect. Diphenhydramine hydrochloride can across the ovine blood-brain barrier (BBB)[1][2].

HY-B0524AS1

Betahistine-13C,d3 dihydrochloride
Betahistine- ¹³C,d₃ (dihydrochloride) is the ¹³C- and deuterium labeled Betahistine (dihydrochloride). Betahistine dihydrochloride is an orally active histamine H1 receptor agonist and a H3 receptor antagonist[1]. Betahistine dihydrochloride is used for the study of rheumatoid arthritis (RA)[3].

HY-14447S1

Bilastine-d4
Bilastine-d₄ is deuterium labeled Bilastine. Bilastine is an oral histamine H1-receptor antagonist. Bilastine can be used for allergic rhinitis and urticaria studies, and it also improves diabetic nephropathy in mice, showing safety for the central nervous system .

HY-B1397S

Cyclizine-d3
Cyclizine-d₃ is deuterium labeled Cyclizine. Cyclizine, a piperazine-derivative, is a potent and selective histamine H1 receptor antagonist. Cyclizine can be used for the research of nausea, vomiting, and dizziness .

HY-17042AS

Cetirizine-d4 dihydrochloride
Cetirizine-d₄ (dihydrochloride) is a deuterium labeled Cetirizine. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response[1][2][3].

HY-17042AS1

Cetirizine-d8 dihydrochloride
Cetirizine-d₈ (dihydrochloride) is a deuterium labeled Cetirizine. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response[1][2][3].

HY-17042S

Cetirizine-d4
Cetirizine-d₄ is a deuterium labeled Cetirizine. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response[1][2][3].

HY-17042S1

Cetirizine-d8
Cetirizine-d₈ is a deuterium labeled Cetirizine. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response[1][2][3].

HY-B0349S

Meclizine-d8
Meclizine-d₈ is a deuterium labeled Meclizine. Meclizine is a histamine H1 receptor antagonist and has the potential to treat nausea and motion sickness. Meclizine is an agonist ligand for mouse constitutive androstane receptor (CAR) and an inverse agonist for Human CAR[1][2][3].

HY-A0019S

Paliperidone-d4
Paliperidone-d₄ is the deuterium labeled Paliperidone. Paliperidone (9-Hydroxyrisperidone), the major active metabolite of Risperidone, is a dopamine D2 antagonist and 5-HT2A antagonist. Paliperidone is also active as an antagonist at α1 and α2 adrenergic receptors and H1-histaminergic receptors. Paliperidone, a antipsychotic agent, shows efficacy against schizophrenia[1].

HY-B0781S

Promethazine-d4 hydrochloride
Promethazine-d₄ (hydrochloride) is the deuterium labeled Promethazine hydrochloride. Promethazine hydrochloride is the first-generation antihistamine; strong antagonist of the H1 receptor and moderate mACh receptor antagonist, moderate affinity for 5-HT2A, 5-HT2C, D2 and α1-adrenergic receptors.

HY-B0548AS2

Hydroxyzine-d8 dihydrochloride
Hydroxyzine-d₈ (dihydrochloride) is the deuterium labeled Hydroxyzine dihydrochloride. Hydroxyzine dihydrochloride, a benzodiazepine antihistamine agent, acts as a orally active histamine H1-receptor and serotonin antagonist. Hydroxyzine dihydrochloride has anxiolytic effect and can be used forthe research of generalised anxiety disorder[1][2].

HY-B0548AS1

Hydroxyzine-d4' dihydrochloride
Hydroxyzine-d₄ (dihydrochloride) is the deuterium labeled Hydroxyzine dihydrochloride. Hydroxyzine dihydrochloride, a benzodiazepine antihistamine agent, acts as a orally active histamine H1-receptor and serotonin antagonist. Hydroxyzine dihydrochloride has anxiolytic effect and can be used forthe research of generalised anxiety disorder[1][2].

HY-B0674S

Ebastine-d5
Ebastine-d₅ is the deuterium labeled Ebastine. Ebastine (LAS-W 090) is an orally active, second-generation histamine H1 receptor antagonist. Ebastine can be used for the symptoms of allergic rhinitis and chronic idiopathic urticaria research[1][2].

HY-B0801S2

Fexofenadine-d3
Fexofenadine-d₃ is the deuterium labeled Fexofenadine[1]. Fexofenadine (MDL-16455) is an orally active and nonsedative H1 receptor antagonist. Fexofenadine can be used in allergic rhinitis and chronic idiopathic urticarial research[2][3][4].

HY-B0801S4

Fexofenadine-d3-1
Fexofenadine-d₃-1 fumarate is deuterated labeled Fexofenadine (HY-B0801). Fexofenadine (MDL-16455) is an orally active and nonsedative H1 receptor antagonist. Fexofenadine can be used in allergic rhinitis and chronic idiopathic urticarial research .

HY-B0674S1

Ebastine-d6
Ebastine-d₆ is deuterated labeled Ebastine (HY-B0674). Ebastine (LAS-W 090) is an orally active, second-generation histamine H1 receptor antagonist. Ebastine can be used for the symptoms of allergic rhinitis and chronic idiopathic urticaria research .

HY-12752BS

Alimemazine-d6 hydrochloride

Alimemazine-d6 hydrochloride (Trimeprazine-d6 hydrochloride) is the deuterium labeled Alimemazine (HY-12752). Alimemazine is a phenothiazine derivative that is generally used as an antipruritic agent and also a hemagglutinin (HA)-receptor antagonist.Alimemazine (Trimeprazine) is also acts as a partial agonist against the histamine H1 receptor (H1R) and other GPCRs. Alimemazine displays antiserotonin, antispasmodic, and antiemetic properties .

HY-B0725S

Doxepin D3 Hydrochloride
Doxepin-d₃ (hydrochloride) is a deuterium labeled Doxepin Hydrochloride. Doxepin hydrochloride is an orally active tricyclic antidepressant. Doxepin hydrochloride is a potent and selective histamine receptor H1 antagonist. Doxepin hydrochloride is also a potent CYP450 inhibitor and significantly inhibits CYP450 2C19 and 1A2[1][2].

HY-121356S1

Carebastine-d5 Methyl Ester
Carebastine-d₅ Methyl Ester is the deuterium labeled Carebastine. Carebastine is the active metabolite of Ebastine. Carebastine is a histamine H1 receptor antagonist. Carebastine inhibits VEGF-induced HUVEC and HPAEC proliferation, migration and angiogenesis in a dose-dependent manner[1]. Carebastine suppresses the expression of macrophage migration inhibitory factor[2].

HY-121356S

Carebastine-d5
Carebastine-d₅ is the deuterium labeled Carebastine. Carebastine is the active metabolite of Ebastine. Carebastine is a histamine H1 receptor antagonist. Carebastine inhibits VEGF-induced HUVEC and HPAEC proliferation, migration and angiogenesis in a dose-dependent manner[1]. Carebastine suppresses the expression of macrophage migration inhibitory factor[2].

HY-108411S

Emedastine-13C,d3 fumarate
Emedastine- ¹³C,d₃ (fumarate) is the ¹³C- and deuterium labeled Emedastine. Emedastine is an orally active, selective and high affinity histamine H1 receptor antagonist with a Ki value of 1.3 nM. Emedastine is a benzimidazole derivative with potent antiallergic properties and used for allergic rhinitis, allergic skin diseases and allergic conjunctivitis[1][2][3].

HY-B0640S

Epinastine-13C,d3 hydrobromide
Epinastine- ¹³C,d₃ (hydrobromide) is the ¹³C- and deuterium labeled Epinastine. Epinastine (WAL801) is an antihistamine and mast cell stabilizer. Epinastine is a potent, selective and orally-active histamine H1 receptor antagonist. Epinastine also inhibits IL-8 release and has an antiallergic action[1][2][3][4].

HY-W062109S

Olopatadine-d6
Olopatadine-d₆ is the deuterium labeled Olopatadine[1]. Olopatadine is an orally active and selective histamine 1 (H1) receptor antagonist and a mast cell stabilizer. Olopatadine prevents immunologically stimulated pro-inflammatory mediator release from human conjunctival mast cells. Olopatadine can be used for researching allergic conjunctivitis[2][3].

HY-A0015S

Bepotastine-d6(besylate)
Bepotastine-d₆(besylate) is deuterium labeled Bepotastine (besilate). Bepotastine besilate is a selective and orally active second-generation histamine H1 receptor antagonist, can suppress the expression of nerve growth factor (NGF). Bepotastine besilate has the potential for allergic rhinitis, allergic conjunctivitis and urticaria/pruritus research .

HY-A0027AS

Fenspiride-d5

Fenspiride-d₅ is the deuterium labeled Fenspiride. Fenspiride, an orally active non-steroidal antiinflammatory agent, is an antagonist of H1-histamine receptor. Fenspiride inhibites phosphodiesterase 3 (PDE3), phosphodiesterase 4 (PDE4) and phosphodiesterase 5 (PDE5) activities with -log IC50 values of 3.44, 4.16 and approximately 3.8, respectively. Fenspiride can be used for the research of respiratory diseases[1][2][3].

HY-32329S

Setiptiline-d3

Setiptiline-d₃ is the deuterium labeled Setiptiline. Setiptiline (Org-8282) is a serotonin receptor antagonist. Setiptiline is a tetracyclic antidepressant (TeCA) which acts as a noradrenergic and specific serotonergic antidepressant (NaSSA). Setiptiline acts as a norepinephrine reuptake inhibitor, α2-adrenergic receptor antagonist, and serotonin receptor antagonist, likely at the 5-HT2A, 5-HT2C, and/or 5-HT3 subtypes, as well as an H1 receptor inverse agonist/antihistamine[1][2].

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 .

HY-14541S

Olanzapine-d3
Olanzapine-d₃ is the deuterium labeled Olanzapine. Olanzapine is a selective, orally active monoaminergic antagonist with high affinity binding to serotonin H1, 5HT2A/2C, 5HT3, 5HT6 (Ki=7, 4, 11, 57, and 5 nM, respectively), dopamine D1-4 (Ki=11 to 31 nM), muscarinic M1-5 (Ki=1.9-25 nM), and adrenergic α1 receptors (Ki=19 nM). Olanzapine is an atypical antipsychotic[1][2].

HY-14541S2

Olanzapine-d8

Olanzapine-d8 is a deuterated labeled Olanzapine . Olanzapine (LY170053) is a selective, orally active monoaminergic antagonist with high affinity binding to serotonin H1, 5HT2A/2C, 5HT3, 5HT6 (K_i=7, 4, 11, 57, and 5 nM, respectively), dopamine D1-4 (K_i=11 to 31 nM), muscarinic M1-5 (K_i=1.9-25 nM), and adrenergic α1 receptor (K_i=19 nM). Olanzapine is an atypical antipsychotic .

HY-10564S

Sarpogrelate-d3 hydrochloride

Sarpogrelate-d₃ (hydrochloride) is the deuterium labeled Sarpogrelate hydrochloride. Sarpogrelate hydrochloride (MCI-9042) is a selective 5-HT2R antagonist, with pKis of 8.52, 6.57, and 7.43 for 5-HT2A, 5-HT2B, and 5-HT2C receptors, respectively. Sarpogrelate hydrochloride displays selectivity over 5-HT1, 5-HT3, 5-HT4, α1-, α2- and β-adrenoreceptor, histamine H1, H2 and muscarinic M3 receptors. Sarpogrelate hydrochloride can be used for the research of vascular disease associated with thrombosis[1][2][3].

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