Home Neuronal Signaling Histamine Receptor agonist Histamine Phosphate

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Histamine Phosphate Histamine Receptor agonist

Cat.No.S4117

Histamine(Histamine diphosphate) acts directly on the blood vessels to dilate arteries and capillaries mediated by both H 1- and H 2-receptors. Histamine Phosphate can be used to induce animal models of Gastric and Intestinal Ulcers.
Histamine Phosphate Histamine Receptor agonist Chemical Structure

Chemical Structure

Molecular Weight: 307.14

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Chemical Information, Storage & Stability

Molecular Weight 307.14 Formula

C5H9N.2H3O4P

 Storage (From the date of receipt)
CAS No. 51-74-1 Download SDF Storage of Stock Solutions

Synonyms Histamine diphosphate Smiles C1=C(NC=N1)CCN.OP(=O)(O)O.OP(=O)(O)O

Solubility

In vitro
Batch:

Water : 61 mg/mL

DMSO : Insoluble ( Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : Insoluble

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In vivo
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Mechanism of Action

Features
Histamine phosphate is indicated as a diagnostic aid for evaluation of gastric acid secretory function.
Targets/IC50/Ki
Histamine H1 receptor [1]
Histamine H2 receptor [1]
In vitro

Histamine (10 μM) gives a larger inositol monophosphate accumulation in bovine adrenal chromaffin cells. Histamine (10 μM) stimulates the level of radioactivity into the InsP3-containing fraction in bovine adrenal chromaffin cells. Histamine (100 μM) stimulates incorporation into the InsP3-containing eluate in a less extent than for angiotensin I1 and bradykinin. [1]
In vivo

Histamine phosphate (0.025 mg/kg) produces a mean increase in basilar blood flow of 145% of control in dogs. Histamine phosphate produces considerable increases in basilar blood flow as well as a decrease in femoral arterial blood pressure in dogs when injected intravenously and measured with an electromagnetic flow transducer. [2] Histamine phosphate (4 μg/kg) causes lymph flow to increase from 6.0 to 27.0 (SEM) ml/h in unanesthetized sheep. Histamine phosphate (4 μg/kg) also causes increases in lung water, pulmonary vascular resistance, arterial PCO2, pH, and hematocrit, and decreases in cardiac output and arterial PO2 in unanesthetized sheep. [3] Histamine phosphate (8.3 mg/kg/min) causes no significant change in pulmonary lymph flow (QL) or protein concentration (CL) in anesthetized open-chested dogs, however, both are increased after alloxan. Histamine phosphate (8.3 mg/kg/min) also causes no significant change in the pulmonary capillary membrane filtration coefficient (Kf) and the maximum capillary pressure (PCcritical) in anesthetized open-chested dogs. [4] Histamine phosphate (50 mg/kg) produces a pronounced rise in acid secretion but the output of pepsin remained unchanged in the unanaesthetized intact rat. Histamine phosphate (50 mg/kg) produces maximal stimulation of gastric acid secretion and is free from toxic effects in the unanaesthetized intact rat. [5]
References
  • https://pubmed.ncbi.nlm.nih.gov/7396024/
  • https://pubmed.ncbi.nlm.nih.gov/13779674/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06281366 Recruiting
Pregnancy Complications
Hospital Universitari Vall d''Hebron Research Institute|DR Healthcare
 February 16 2024 --
NCT05216133 Enrolling by invitation
Airway Disease|Barrett Esophagus|Gastroesophageal Reflux Disease
NYU Langone Health|National Institute for Occupational Safety and Health (NIOSH/CDC)
 March 22 2023 --
NCT05701826 Completed
Skeletal Muscle Relaxation
Fujian Shengdi Pharmaceutical Co. Ltd.
 February 15 2023 Phase 1
NCT05676346 Completed
Lower Urinary Tract Symptoms|Histamine Intolerance
Complexo Hospitalario Universitario de A Coruña
 October 11 2022 --

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