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Histamine Phosphate

Name: Histamine Phosphate
Brand: Selleck Chemicals
SKU: S4117

Synonyms: Histamine diphosphate

Catalog No.S4117 Purity: 99.99%

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 Chemical Structure

CAS: 51-74-1

Purity & Quality Control

Batch: Purity: 99.99%

99.99

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Biological Activity

Description

Histamine(Histamine diphosphate) acts directly on the blood vessels to dilate arteries and capillaries mediated by both H 1- and H 2-receptors.

Features

Histamine phosphate is indicated as a diagnostic aid for evaluation of gastric acid secretory function.

Targets

Histamine H1 receptor ^[1]

Histamine H2 receptor ^[1]

In vitro
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
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]

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-01-11)
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	--
NCT05832528	Recruiting	Functional Gastrointestinal Disorders	Universitaire Ziekenhuizen KU Leuven	October 3 2022	Not Applicable

References

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Chemical lnformation & Solubility

Molecular Weight	307.14	Formula	C₅H₉N.2H₃O₄P
CAS No.	51-74-1	SDF	Download Histamine Phosphate SDF
Smiles	C1=C(NC=N1)CCN.OP(=O)(O)O.OP(=O)(O)O
Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
Storage (From the date of receipt)	3 years-20°Cpowder		1 month-20°Cin solvent

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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In vivo Formulation Calculator

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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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