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  • RDD044
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RDD044

Sigma-Aldrich

Imidazole

ReagentPlus®, 99%, Redi-Dri, free-flowing

Synonym(s):
1,3-Diaza-2,4-cyclopentadiene, Glyoxaline
Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
Molecular Weight:
68.08
Beilstein:
103853
MDL number:

vapor pressure

<1 mmHg ( 20 °C)

Quality Level

product line

ReagentPlus®
Redi-Dri

Assay

99%

form

powder

quality

free-flowing

pH

9-11 at 100 g/L (23 °C)

pKa (25 °C)

6.95

bp

256 °C (lit.)

mp

85-92 °C
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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Imidazole

product line

ReagentPlus®, Redi-Dri

product line

BioUltra

product line

-

product line

Redi-Dri

assay

99%

assay

≥99.5% (GC)

assay

≥99% (titration)

assay

≥99% (titration)

form

powder

form

flakes, powder or crystals

form

-

form

crystalline powder

pH

9-11 at 100 g/L (23 °C)

pH

9.5-11.0 (25 °C, 0.1 M in H2O)

pH

9.5-11.0 (25 °C, 5% in H2O)

pH

6.2-7.8 (25 °C)

mp

85-92 °C, 88-91 °C (lit.)

mp

88-91 °C (lit.)

mp

88-91 °C (lit.)

mp

88-91 °C (lit.)

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

Application

Excellent for buffers in the range of pH 6.2-7.8

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 2

Flash Point(F)

293.0 °F - closed cup

Flash Point(C)

145 °C - closed cup

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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