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Key Documents

V800216

Sigma-Aldrich

Imidazole

LR, ≥99%

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
Molecular Weight:
68.08
Beilstein/REAXYS Number:
103853
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
grade:
LR
assay:
≥99%
bp:
256 °C (lit.)
vapor pressure:
<1 mmHg ( 20 °C)
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grade

LR

vapor pressure

<1 mmHg ( 20 °C)

product line

Vetec

assay

≥99%

form

crystalline

dilution

(for analytical testing)

pH

9.5-11 (25 °C, 6.8 g/L)

pKa (25 °C)

6.95

bp

256 °C (lit.)

mp

88-91 °C (lit.)

SMILES string

c1c[nH]cn1

InChI

1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N

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Application

Excellent for buffers in the range of pH 6.2-7.8

Legal Information

Vetec is a trademark of Merck KGaA, Darmstadt, Germany

signalword

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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