1. Signaling Pathways
  2. GPCR/G Protein
    Immunology/Inflammation
    Neuronal Signaling
  3. Histamine Receptor

Histamine Receptor

Histamine Receptors are a class of G protein-coupled receptors with histamine as their endogenous ligand. There are four known histamine receptors: H1 receptor, H2 receptor, H3 receptor, H4 receptor. The H1 receptor is a histamine receptor belonging to the family of Rhodopsin-like G-protein-coupled receptors. This receptor, which is activated by the biogenic amine histamine, is expressed throughout the body, to be specific, in smooth muscles, on vascular endothelial cells, in the heart, and in the central nervous system. H2 receptors are positively coupled to adenylate cyclase via Gs. It is a potent stimulant of cAMP production, which leads to activation of Protein Kinase A. Histamine H3 receptors are expressed in the central nervous system and to a lesser extent the peripheral nervous system, where they act asautoreceptors in presynaptic histaminergic neurons, and also control histamine turnover by feedback inhibition of histamine synthesis and release. The Histamine H4 receptor has been shown to be involved in mediating eosinophil shape change and mast cell chemotaxis.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-B1204S
    Histamine-α,α,β,β-d4 dihydrochloride
    Activator ≥98.0%
    Histamine-α,α,β,β-d4 (dihydrochloride) is the deuterium labeled Histamine. Histamine is an organic nitrogenous compound involved in local immune responses as well as regulating physiological function in the gut and acting as a neurotransmitter.
    Histamine-α,α,β,β-d<sub>4</sub> dihydrochloride
  • HY-111827
    S-1-Propenyl-L-cysteine
    99.81%
    S-1-Propenyl-L-cysteine is a stereoisomer of S-allyl-l-cysteine, extracted from garlic, with immunomodulatory effects and reduces blood pressure in a hypertensive animal model. S-1-Propenyl-L-cysteine exhibits antioxidative efficacy through a NO-dependent BACH1 signaling pathway. S-1-Propenyl-L-cysteine is orally active.
    S-1-Propenyl-L-cysteine
  • HY-14270
    Lodoxamide
    Inhibitor 98.07%
    Lodoxamide (U-42585E free acid) is an antiallergic compound acting as a mast-cell stabilizer for the treatment of asthma and allergic conjunctivitis.
    Lodoxamide
  • HY-B0801
    Fexofenadine
    Antagonist 99.84%
    Fexofenadine (MDL-16455) is an orally active and nonsedative H1 receptor antagonist. Fexofenadine can be used in allergic rhinitis and chronic idiopathic urticarial research.
    Fexofenadine
  • HY-19705B
    Adriforant hydrochloride
    Antagonist ≥98.0%
    Adriforant hydrochloride (PF-3893787 hydrochloride) is a novel histamine H4 receptor antagonist binding affinity (Ki=2.4 nM) and is also a functional (Ki=1.56 nM) antagonist.
    Adriforant hydrochloride
  • HY-I0021
    Bepotastine
    Antagonist 98.58%
    Bepotastine is a selective and orally active second-generation histamine H1 receptor antagonist, can suppress the expression of nerve growth factor (NGF). Bepotastine has the potential for allergic rhinitis, allergic conjunctivitis and urticaria/pruritus research.
    Bepotastine
  • HY-B1693
    Levomepromazine
    Antagonist 99.98%
    Levomepromazine (Methotrimeprazine) is an orally active antipsychotic compound and Ca2+ release inducer. Levomepromazine inhibits SERCA pump and induces an increase in cytoplasmic Ca2+ levels. Levomepromazine has antagonistic effects on a variety of neurotransmitter receptors, including dopamine, cholinergic, serotonin, and histamine receptors. Levomepromazine can induce adaptive ER stress and autophagy. In addition, Levomepromazine has antiviral, anti-inflammatory, neuroprotective and analgesic, sedative and anti-injurious activities. Levomepromazine can be used in the study psychiatric disorders and relieving nausea and vomiting.
    Levomepromazine
  • HY-30234A
    Clemizole hydrochloride
    Antagonist 99.99%
    Clemizole hydrochloride is an H1 histamine receptor antagonist, is found to substantially inhibit HCV replication. Clemizole hydrochloride is an inhibitor of TRPC5 channel. The IC50 of Clemizole hydrochloride for RNA binding by NS4B is 24 nM, whereas its EC50 for viral replication is 8 μM.
    Clemizole hydrochloride
  • HY-B0548A
    Hydroxyzine dihydrochloride
    Antagonist 99.81%
    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.
    Hydroxyzine dihydrochloride
  • HY-B1794
    Thiethylperazine
    Antagonist 99.91%
    Thiethylperazine, a phenothiazine derivate, is an orally active and potent dopamine D2-receptor and histamine H1-receptor antagonist. Thiethylperazine is also a selective ABCC1activator that reduces amyloid-β (Aβ) load in mice. Thiethylperazine has anti-emetic, antipsychotic and antimicrobial effects.
    Thiethylperazine
  • HY-14111
    GSK189254A
    Antagonist 98.59%
    GSK189254A (GSK189254 free base) is a novel, potent and selective histamine H3 receptor antagonist with pKi values of 9.59-9.90 and 8.51-9.17 for human and rat H3, respectively.
    GSK189254A
  • HY-A0015
    Bepotastine besilate
    Antagonist 99.77%
    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.
    Bepotastine besilate
  • HY-13511A
    Rupatadine Fumarate
    Antagonist 98.77%
    Rupatadine (UR-12592) Fumarate is a potent, orally active and long-lasting dual PAF/H1 antagonist, with Kis of 0.55 μM and 0.1 μM, respectively. Rupatadine Fumarate can be used for the research of allergic rhinitis and urticaria.
    Rupatadine Fumarate
  • HY-B1090
    Cinnarizine
    Inhibitor 99.63%
    Cinnarizine is an antihistamine and a calcium channel blocker, promote cerebral blood flow, used to treat cerebral apoplexy, post-trauma cerebral symptoms, and cerebral arteriosclerosis.
    Cinnarizine
  • HY-10121
    Asenapine
    Antagonist 99.62%
    Asenapine (Org 5222), an atypical antipsychotic, is an antagonist of serotonin receptors (pKi: 8.4-10.5), adrenoceptors (pKi: 8.9-9.5), dopamine receptors (pKi: 8.9-9.4) and histamine receptors (pKi: 8.2-9.0). Asenapine can be used in the research of schizophrenia and bipolar disorder.
    Asenapine
  • HY-107560
    4-Methylhistamine dihydrochloride
    Agonist 99.35%
    4-Methylhistamine (dihydrochloride) is the potent agonist of histamine 4 receptor (H4R). 4-Methylhistamine (dihydrochloride) has the potential for the research of immune-related diseases such as cancer and autoimmune disorders.
    4-Methylhistamine dihydrochloride
  • HY-13448
    Nedocromil
    Inhibitor 98.75%
    Nedocromil suppresses the action or formation of multiple mediators, including histamine, leukotriene C4 (LTC4), and prostaglandin D2 (PGD2).
    Nedocromil
  • HY-B0274
    Chlorprothixene
    Antagonist 99.61%
    Chlorprothixene is a dopamine and histamine receptors antagonist with Kis of 18 nM, 2.96 nM, 4.56 nM, 9 nM and 3.75 nM for hD1, hD2, hD3, hD5 and hH1 receptors, respectively. Antipsychotic activity.
    Chlorprothixene
  • HY-101063
    Amthamine dihydrobromide
    Agonist 99.64%
    Amthamine is a histamine receptor (H1R-H4R) agonist. Amthamine can produce liver congestion and necrosis of liver cells. Amthamine can be used to study the induction effect of H1R-H4 agonist on hepatotoxicity .
    Amthamine dihydrobromide
  • HY-14447
    Bilastine
    Antagonist 99.91%
    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.
    Bilastine
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