histamine

Histamine (Ergamine) is an amine derived from histamine through enzymatic decarboxylation; it acts as a histamine receptor agonist and vasodilator. Histamine is an organic nitrogen compound that participates in local immune responses and regulates intestinal physiological functions. Histamine is a potent stimulant of gastric secretion, a bronchoconstrictor, a vasodilator, and a centrally acting neurotransmitter. Histamine influences the p38 MAPK/Akt signaling pathway and exhibits antitumor, antioxidant, and anti-inflammatory activities. Histamine can be used in research on acute myeloid leukemia, malignant melanoma, and renal cell carcinoma.

Histamine dihydrochloride (Ceplene) is the dihydrochloride salt form of histamine, an endogenous metabolic product. Histamine is an organic nitrogen-containing compound with diverse biological activities. It acts as a potent stimulator of gastric acid secretion, a bronchial smooth muscle constrictor, and a vasodilator, as well as a neurotransmitter with central nervous system activity. It is commonly used to induce gastric ulcer models in research.

N tau-methylhistamine is one of the histamine metabolites. N tau-methylhistamine in plasma and urine is a good parameter for histamine release, and the determination of this histamine metabolite is generally less hampered by possible artifacts (due to bas

Histamine phosphate is a potent agonist of histamine receptors and a vasodilatory neurotransmitter. It can activate nitric oxide synthase and is commonly used to induce gastric ulcer models.

β-NETA (α-NETA) is a stable, noncompetitive, slowly reversible choline acetyltransferase (ChAT) inhibitor with an IC50 of 9 μM and is a potent chemokine-like receptor-1 (CMKLR1) antagonist. β-NETA has anti-cancer activity[1][2]. β-NETA weakly inhibits cholinesterase (IC50=84 µM) and acetylcholinesterase (IC50=300 µM).

JNJ-39758979 is a selective and high-affinity histamine H4 receptor antagonist (Kis: 12.5, 5.3, and 25 nM for human, mouse, and monkey histamine H4 receptor, respectively). JNJ-39758979 functionally antagonizes histamine-induced cAMP inhibition with a pA2

Dimaprit dihydrochloride, a selective histamine H2 receptor agonist, inhibits nNOS with an IC50 of 49 μM and can stimulate gastric acid secretion.

Lafutidine (FRG-8813) is a newly developed histamine H2-receptor antagonist that inhibits gastric acid secretion.

CI-949 is an allergic mediator release inhibitor that inhibits the release of leukotriene C4/D4 (LTC4/LTD4), histamine, and thromboxane B2 (TXB2) with IC50 values of 0.5 μM, 11.4 μM, and 0.1 μM, respectively.

Quinotolast sodium inhibits histamine, LTC4 and PGD2 release in a concentration-dependent manner in the concentration range of 1-100 μg/mL.

Nedocromil (FPL 59002) inhibits the action or formation of multiple mediators. Which including histamine, leukotriene C4 (LTC4), and prostaglandin D2 (PGD2).

R112 is an ATP-competitive inhibitor of Syk kinase. Ki=6 nM,IC50=226 nM.

Betahistine EP Impurity C (NSC19005) is structurally related to Betahistine and is a dimer of Betahistine.

Thonzylamine (neohetramine) is an antihistamine and anticholinergic drug. It is available as combination products with Clofedanol or Phenylephrine for temporary relief of symptoms of common cold, hay fever (allergic rhinitis) or other upper respiratory allergies.

Metoprine is a potent inhibitor of histamine N-methyltransferase (HMT), with potential antineoplastic activity.

(25R)-Spirost-4-ene-3,12-dione, a natural product,

Histamine H4 receptor antagonist-1 is a potent antagonist of the histamine H4 receptor (hydrochloride).

Compound 10o, a histamine H3 antagonist-1, functions as both a histamine H3 antagonist and a serotonin reuptake inhibitor, making it useful for research in depression [1].

Nα-Methylhistamine FA is a histamine H3 receptor agonist

(R)-(-)-α-Methylhistamine dihydrobromide is a potent, selective, and brain-penetrant agonist of the H3 histamine receptor with high receptor affinity, capable of enhancing memory retention and attenuating cognitive impairment in rat models, making it a valuable pharmacological probe for elucidating central histaminergic signaling and H3 receptor-mediated modulation of learning and memory processes.

N-Acetylhistamine (N-Omega-acetylhistamine) is a metabolite of histamine.

Histamine glutarimide is a novel small molecule agent functioning as an inhibitor of glutaminyl-peptide cyclotransferase (QPCT), which targets key inflammatory processes including eosinophilic migration and mast cell degranulation, Histamine glutarimide has demonstrated significant anti-asthmatic effects in various preclinical animal models of allergic asthma.

R(-)-alpha-Methylhistamine 2HCl is an effective and selective agonist of the H3 histamine receptor.

4-Methylhistamine serves as a potent agonist for the histamine 4 receptor (H4R), holding promise for research into immune-related diseases, including cancer and autoimmune disorders [1] [2].