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A4730

Sigma-Aldrich

Amthamine dihydrobromide

≥98% (HPLC), solid

Synonym(s):

2-Amino-4-methyl-5-thiazoleethanamine dihydrobromide

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About This Item

Empirical Formula (Hill Notation):
C6H11N3S · 2HBr
CAS Number:
Molecular Weight:
319.06
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Assay

≥98% (HPLC)

form

solid

color

off-white

solubility

H2O: 27 mg/mL

storage temp.

2-8°C

SMILES string

Br[H].Br[H].Cc1nc(N)sc1CCN

InChI

1S/C6H11N3S.2BrH/c1-4-5(2-3-7)10-6(8)9-4;;/h2-3,7H2,1H3,(H2,8,9);2*1H

InChI key

XFXNNOPUDSFVJE-UHFFFAOYSA-N

Application

Amthamine dihydrobromide is a histamine H2 receptor agonist. Amthamine dihydrobromide has been used to study the effect of mast cells on T regulatory cell function.

Biochem/physiol Actions

Amthamine dihydrobromide is a H2 histamine receptor agonist. Amthamine dihydrobromide, similar to histamine, inhibits H2 receptor-mediated eosinophil peroxidase (EPO) release with IC50 = 0.4 μM; a weak antagonist at H3 and shows no activity at H1 receptors.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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G Coruzzi et al.
Naunyn-Schmiedeberg's archives of pharmacology, 348(1), 77-81 (1993-07-01)
The new histamine H2 receptor agonist amthamine, [2-amino-5-(2-aminoethyl)-4-methylthiazole], was tested for its activity on gastric acid secretion in different in vivo and in vitro experimental models. Amthamine induced a dose-related increase in acid secretion both in conscious cats with a
Wei Zhang et al.
Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology, 15(2), 280-291 (2019-12-22)
Histamine is a major peripheral inflammatory mediator and a neurotransmitter in the central nervous system. We have reported that histamine induces microglia activation and releases proinflammatory factors in primary cultured microglia. Whether histamine has similar effects in vivo is unknown.
Cardiac effects of amthamine: a new histamine H2-receptor agonist.
G Coruzzi et al.
European journal of clinical investigation, 25 Suppl 1, 27-28 (1995-03-01)
Yi-Nan Chen et al.
Journal of neuroinflammation, 17(1), 217-217 (2020-07-24)
Microglia, the principal sentinel immune cells of the central nervous system (CNS), play an extensively vital role in neuroinflammation and perioperative neurocognitive disorders (PND). Histamine, a potent mediator of inflammation, can both promote and prevent microglia-related neuroinflammation by activating different
Nicholas A Forward et al.
Journal of immunology (Baltimore, Md. : 1950), 183(5), 3014-3022 (2009-08-12)
Mast cells promote both innate and acquired immune responses, but little is known about the effect of mast cells on T regulatory (T(reg)) cell function. In this study, we show for the first time that the capacity of murine CD4(+)CD25(+)

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