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H7375

Sigma-Aldrich

Histamine bisphosphate monohydrate

Synonym(s):

2-(4-Imidazolyl)ethylamine diphosphate salt, 2-(4-Imidazolyl)ethylamine diphosphate salt monohydrate, Histamine diphosphate salt monohydrate

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About This Item

Empirical Formula (Hill Notation):
C5H9N3 · 2H3PO4 · H2O
CAS Number:
51-74-1
Molecular Weight:
325.15
Beilstein:
3744619
EC Number:
200-118-4
MDL number:
MFCD00150816
UNSPSC Code:
12352116
PubChem Substance ID:
329815242
NACRES:
NA.77

storage temp.

−20°C

SMILES string

[H]O[H].OP(O)(O)=O.OP(O)(O)=O.NCCc1c[nH]cn1

InChI

1S/C5H9N3.2H3O4P.H2O/c6-2-1-5-3-7-4-8-5;2*1-5(2,3)4;/h3-4H,1-2,6H2,(H,7,8);2*(H3,1,2,3,4);1H2

InChI key

CNSGLKZGHLZDHQ-UHFFFAOYSA-N

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Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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F E Simons et al.
Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology, 86(1), 44-50 (2001-02-24)
The relative contribution of histamine and the cysteinyl leukotrienes to the early and late cutaneous allergic responses (ECAR and LCAR) can be studied using antagonists of these mediators. To determine the relative suppression of the ECARs and LCARs using standard
S Rietveld et al.
Health psychology : official journal of the Division of Health Psychology, American Psychological Association, 16(6), 547-553 (1997-12-05)
The discordance between the objective and subjective symptoms of asthma has major effects on proper medication and management. In 2 studies the influence of respiratory sounds in the process of symptom perception underlying breathlessness was investigated in children aged 7-17
R G van Wijk et al.
Allergy proceedings : the official journal of regional and state allergy societies, 14(4), 273-281 (1993-07-01)
For a study on the relationship between nasal hyperreactivity to histamine and the nasal response to allergen, 14 rhinitis patients allergic to house-dust mites were challenged with histamine and 5 days later with a house-dust mite (HDM) extract. According to
Use of histamine phosphate for the interpretation of intradermal skin tests in dogs.
V E S Cunha et al.
The Veterinary record, 165(24), 723-724 (2009-12-17)
A M Majchel et al.
The Journal of allergy and clinical immunology, 90(1), 85-91 (1992-07-01)
To evaluate changes in the nasal response to histamine, we challenged 19 subjects with allergic rhinitis caused by ragweed (RW) before, during, and after the RW season with increasing doses of histamine diphosphate. We compared their response, as measured by
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