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Sigma-Aldrich

1-Methylimidazole

≥99%, purified by redistillation

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Synonym(s):
N-Methylimidazole
Empirical Formula (Hill Notation):
C4H6N2
CAS Number:
Molecular Weight:
82.10
Beilstein/REAXYS Number:
105197
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

0.4 mmHg ( 20 °C)

Quality Level

assay

≥99%

form

liquid

autoignition temp.

977 °F

purified by

redistillation

expl. lim.

15.7 %

impurities

≤19 ppm Triazine
<0.005% water

refractive index

n20/D 1.495 (lit.)

bp

198 °C (lit.)

mp

−6 °C (lit.)

density

1.03 g/mL at 25 °C (lit.)
1.034-1.036 g/mL

SMILES string

Cn1ccnc1

InChI

1S/C4H6N2/c1-6-3-2-5-4-6/h2-4H,1H3

InChI key

MCTWTZJPVLRJOU-UHFFFAOYSA-N

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General description

1-Methylimidazole is an N-donor ligand generally used in the preparation of coordinate complexes.

Application

1-Methylimidazole may be used as a starting material to synthesize:
  • 1-(2-hydroxypropyl)-3-methylimidazolium salts used as ionic liquids
  • 1,3-dimethylimidazoyl-2-ylidene borane, a stable and easy to handle N-heterocyclic carbene borane
  • It can act both as a catalyst and a solvent in the synthesis of aldononitrile acetates from aldoses.

pictograms

CorrosionSkull and crossbones

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Skin Corr. 1B

Storage Class

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 2

flash_point_f

197.6 °F - closed cup

flash_point_c

92 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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