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Sigma-Aldrich

Histamine bisphosphate monohydrate

≥99.0% (NT)

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:
12352005
eCl@ss:
32160406
PubChem Substance ID:
57651405
NACRES:
NA.22

Quality Level

100

Assay

≥99.0% (NT)

form

solid

mp

128-132 °C

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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General description

Histamine bisphosphate monohydrate is an imidazole containing heterocyclic building block that can be employed in chemical synthesis. Its crystal structure belongs to the monoclinic space group, P21/c and shows O–H ? O and N–H?O hydrogen bonds.

Signal Word

Danger

Hazard Classifications

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

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Crystal structure of histamine diphosphate monohydrate.
Veidis MV, et al.
J. Chem. Soc. Sect. A, 2659-2666 (1969)
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The recent demonstration of increased shortening of asthmatic airway smooth muscle could result from increased contractility of the muscle itself or from a decreased load that must be overcome by the smooth muscle to shorten. To evaluate the role of
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