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Merck

59964

Histamine

analytical standard

Synonym(s):

2-(4-Imidazolyl)ethylamine

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About This Item

Empirical Formula (Hill Notation):
C5H9N3
CAS Number:
51-45-6
Molecular Weight:
111.15
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329758639
EC Number:
200-100-6
Beilstein/REAXYS Number:
2012
MDL number:
MFCD00005210

Key Documents

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InChI key

NTYJJOPFIAHURM-UHFFFAOYSA-N

InChI

1S/C5H9N3/c6-2-1-5-3-7-4-8-5/h3-4H,1-2,6H2,(H,7,8)

SMILES string

NCCc1c[nH]cn1

grade

analytical standard

assay

≥97.0% (TLC), ≥97.0% (anhydrous basis, NT)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

impurities

≤4.0% water

color

white to light yellow

bp

167 °C/0.8 mmHg (lit.)

mp

83-84 °C (lit.)

format

neat

storage temp.

−20°C

Quality Level

100

Gene Information

human ... HRH1(3269)

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Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Biochem/physiol Actions

Endogenous H1 and H2 histamine receptor agonist; H1 activation mobilizes Ca2+; H2 activation stimulates adenylate cyclase activity in neurons; activates nitric oxide synthetase; potent vasodilator.
Endogenous H1 and H2 histamine receptor agonist; activates nitric oxide synthetase; potent vasodilator.

pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

59964-100MG: + 59964-VAR: + 59964-BULK:

jan

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Certificates of Analysis (COA)

Lot/Batch Number
BCCD9621
BCCC7505
BCCB6982
BCBV8838
BCBW3895

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Ye Zhang et al.
Investigative ophthalmology & visual science, 56(1), 563-570 (2015-01-13)
We estimate and compare change in iris cross-sectional area (IA) after physiologic and pharmacologic mydriasis in subjects with different dominant mechanisms for primary angle closure. Anterior segment optical coherence tomography (AS-OCT) measurements in light, dark, and following pharmacologic dilation were
Mohamed H Shamji et al.
The Journal of allergy and clinical immunology, 135(4), 913-921 (2014-12-03)
Immunotherapy inhibits basophil histamine release, but the assay is cumbersome, and no one has studied the effects of immunotherapy withdrawal. Intracellular fluorochrome-labeled diamine oxidase (DAO) was used as a novel functional readout of basophil histamine release after immunotherapy. Results were
P J Turner et al.
Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology, 25(7), 657-661 (2014-10-10)
Most children with egg allergy tolerate egg in baked foods, such as cake, but tolerance cannot be predicted with conventional allergy testing. We hypothesized that the skin prick test (SPT) wheal to unprocessed raw egg might predict tolerance of baked
Andrea Strasser et al.
Trends in pharmacological sciences, 34(1), 13-32 (2012-12-12)
Histamine is a biogenic amine that exerts its biological effects as a neurotransmitter and local mediator via four histamine receptor (HR) subtypes (H(x)Rs) - H(1)R, H(2)R, H(3)R, and H(4)R - belonging to the superfamily of G-protein-coupled receptors (GPCRs). All four
Ruth Ferstl et al.
Frontiers in bioscience (Landmark edition), 17, 40-53 (2011-12-29)
Histamine influences many cell types involved in the regulation of innate and adaptive immune responses including antigen-presenting cells (APCs), Natural Killer (NK) cells, epithelial cells, T lymphocytes and B lymphocytes. These cells express histamine receptors (HRs) and also secrete histamine
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