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I202

Sigma-Aldrich

Imidazole

ReagentPlus®, 99%

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Synonym(s):
1,3-Diaza-2,4-cyclopentadiene, Glyoxaline
Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
Molecular Weight:
68.08
Beilstein:
103853
EC Number:
MDL number:
eCl@ss:
39161001
PubChem Substance ID:
NACRES:
NA.25

vapor pressure

<1 mmHg ( 20 °C)

Quality Level

product line

ReagentPlus®

Assay

99%

form

crystalline

pH

9-11 at 100 g/L (23 °C)

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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This Item
I0250RDD04456748
Imidazole ReagentPlus&#174;, 99%

Sigma-Aldrich

I202

Imidazole

-
Imidazole &#8805;99% (titration), crystalline

Sigma-Aldrich

I0250

Imidazole

-
Imidazole ReagentPlus&#174;, 99%, Redi-Dri&#8482;, free-flowing

Sigma-Aldrich

RDD044

Imidazole

-
Imidazole BioUltra, for molecular biology, &#8805;99.5% (GC)

Sigma-Aldrich

56748

Imidazole

Premium Grade
assay

99%

assay

≥99% (titration)

assay

99%

assay

≥99.5% (GC)

form

crystalline

form

crystalline

form

powder

form

flakes, powder or crystals

pH

9-11 at 100 g/L (23 °C)

pH

6.2-7.8 (25 °C)

pH

9-11 at 100 g/L (23 °C)

pH

9.5-11.0 (25 °C, 0.1 M in H2O)

mp

88-91 °C (lit.)

mp

88-91 °C (lit.)

mp

85-92 °C, 88-91 °C (lit.)

mp

88-91 °C (lit.)

Quality Level

200

Quality Level

300

Quality Level

100

Quality Level

200

Application

Imidazole is a biocompatible molecule that is used as a scaffold for biomimetic applications. It is used as a bioreagent with an ability to hydrogen bond with drugs and proteins. It can be also be used as an additive for the formation of an electrolyte for fuel cell applications.
Excellent for buffers in the range of pH 6.2-7.8

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Three-Dimensional Covalent Co-Assembly between Inorganic Supertetrahedral Clusters and Imidazolates.
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Ribonucleotide reductase (RnR) is a key enzyme synthesizing deoxyribonucleotides for DNA replication and repair. In mammals, the R1 catalytic subunit forms an active complex with either one of the two small subunits R2 and p53R2. Expression of R2 is S

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