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136131

Sigma-Aldrich

1,2-Dimethylimidazole

97%

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Synonym(s):
1,2-Dimethyl-1H-imidazole, 1,2DMZ
Empirical Formula (Hill Notation):
C5H8N2
CAS Number:
Molecular Weight:
96.13
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor pressure

1 mmHg ( 20 °C)

Assay

97%

form

solid

autoignition temp.

896 °F

bp

204 °C (lit.)

mp

37-39 °C (lit.)

density

1.084 g/mL at 25 °C (lit.)

SMILES string

Cc1nccn1C

InChI

1S/C5H8N2/c1-5-6-3-4-7(5)2/h3-4H,1-2H3

InChI key

GIWQSPITLQVMSG-UHFFFAOYSA-N

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1 of 4

This Item
3360921351868.03245
1,2-Dimethylimidazole 97%

Sigma-Aldrich

136131

1,2-Dimethylimidazole

1-Methylimidazole ≥99%, purified by redistillation

Sigma-Aldrich

336092

1-Methylimidazole

Diisobutylamine 99%

Sigma-Aldrich

135186

Diisobutylamine

form

solid

form

liquid

form

liquid

form

solid

bp

204 °C (lit.)

bp

198 °C (lit.)

bp

137-139 °C (lit.)

bp

205 °C/1013 hPa

mp

37-39 °C (lit.)

mp

−6 °C (lit.)

mp

−77 °C (lit.)

mp

30-40 °C

density

1.084 g/mL at 25 °C (lit.)

density

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

density

0.74 g/mL at 25 °C (lit.)

density

0.99 g/cm3 at 40 °C

Quality Level

100

Quality Level

300

Quality Level

200

Quality Level

200

General description

1,2-Dimethylimidazole reacts with copper(II) tetraacetate to yield cis-bis(acetato)bis(1,2-dimethylimidazole) copper(II) complex. It undergoes Menschutkin reaction with benzyl bromide to yield 3-benzyl-1,2-dimethylimidazolium bromide and kinetics of reaction was studied in various ionic liquids and molecular organic solvents.

Application

1,2-Dimethylimidazole was used in the synthesis of 1,2-dimethyl-3-n-butylimidazoliumchloride and 1,2-dimethyl-3-n-propylimidazolium chloride. It was also used in the synthesis of 1-(2-methoxyethyl)-2,3-dimethylimidazolium chloride and hexafluorophosphate salts.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

197.6 °F - closed cup

Flash Point(C)

92 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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The crystal structures and thermal behavior of the 1-(2-methoxyethyl)-2,3-dimethylimidazolium chloride and hexa-fluorophosphate salts are compared with the analogous 1-butyl-2,3-dimethylimidazolium salts to examine the influence of the ether oxygen on salt thermal properties for a typical constituent cation used in the
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Four novel ILs functionalized β-cyclodextrins (β-CDs) were prepared by treating 6-tosyl-β-cyclodextrin with 1,2-dimethylimidazole or 1-amino-1,2,3-triazole, and bonded to silica gel to obtain chiral stationary phases (CSPs) to be used in high-performance liquid chromatography (HPLC). The separation performances of these CSPs

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