histamine

Histamine (Ergamine) is an amine derived by the enzymatic decarboxylation of histamine. Histamine is a potent stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and a neurotransmitter of central action.

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

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.

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.

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].

Histamine-OVA is a hapten-carrier protein conjugate formed by coupling Histamine to chicken ovalbumin (OVA). As a hapten, Histamine alone cannot induce an immune response and must be conjugated to a large molecular protein to become a complete antigen with immunogenicity.

Histamine-BSA is a hapten-carrier protein conjugate formed by coupling Histamine to bovine serum albumin (BSA). As a hapten, Histamine alone cannot induce an immune response and must be conjugated to a large molecular protein to become a complete antigen with immunogenicity. Histamine-BSA may be supplied as a lyophilized powder or as a solution. The solution is prepared in 0.01 M TBS (pH 7.4) buffer at a typical concentration of 1 mg/mL.

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,