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1336500

USP

Imidazole

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

1,3-Diaza-2,4-cyclopentadiene, Glyoxaline

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About This Item

Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
288-32-4
Molecular Weight:
68.08
Beilstein/REAXYS Number:
103853
MDL number:
MFCD00005183
UNSPSC Code:
41116107
PubChem Substance ID:
329750151
NACRES:
NA.24

grade

pharmaceutical primary standard

vapor pressure

<1 mmHg ( 20 °C)

API family

imidazole

manufacturer/tradename

USP

pKa (25 °C)

6.95

bp

256 °C (lit.)

mp

88-91 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

c1c[nH]cn1

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Excellent for buffers in the range of pH 6.2-7.8
Imidazole USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Clotrimazole
  • Clotrimazole Topical Solution
  • Perindopril Erbumine
  • Moexipril Hydrochloride
  • Clotrimazole Vaginal Inserts
  • Sildenafil Citrate
  • Clotrimazole Lozenges

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C

Storage Class

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

wgk_germany

WGK 2

flash_point_f

293.0 °F - closed cup

flash_point_c

145 °C - closed cup

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