ChemicalBook > CAS DataBase List > 2-Ethyl-4-methylimidazole
2-Ethyl-4-methylimidazole
- Product Name
- 2-Ethyl-4-methylimidazole
- CAS No.
- 931-36-2
- Chemical Name
- 2-Ethyl-4-methylimidazole
- Synonyms
- 2E4MZ;2-ETHYL-4-METHYL-1H-IMIDAZOLE;2E4MI;EMI24;Ethyl-4-MethyliMidaz;LABOTEST-BB LTBB000689;2-ethyl-4-methyl-1h-imidazol;2-Ethyl-5-methyl-1H-imidazole;1H-Imidazole,2-ethyl-4-methyl-;EMI-70
- CBNumber
- CB1325025
- Molecular Formula
- C6H10N2
- Formula Weight
- 110.16
- MOL File
- 931-36-2.mol
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2-Ethyl-4-methylimidazole Property
- Melting point:
- 47-54 °C (lit.)
- Boiling point:
- 292-295 °C (lit.)
- Density
- 0.975 g/mL at 25 °C (lit.)
- vapor pressure
- 0.028Pa at 20℃
- refractive index
- n20/D 1.5(lit.)
- Flash point:
- 280 °F
- storage temp.
- Inert atmosphere,Room Temperature
- form
- powder to lump to clear liquid
- pka
- 15.32±0.10(Predicted)
- Specific Gravity
- 0.975
- color
- White or Colorless to Yellow to Orange
- Water Solubility
- 210 g/L (20 ºC)
- BRN
- 1711
- InChIKey
- ULKLGIFJWFIQFF-UHFFFAOYSA-N
- LogP
- 1.13 at 25℃
- CAS DataBase Reference
- 931-36-2(CAS DataBase Reference)
- NIST Chemistry Reference
- 1H-Imidazole, 2-ethyl-4-methyl-(931-36-2)
- EPA Substance Registry System
- 2-Ethyl-4-methylimidazole (931-36-2)
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- E36652
- Product name
- 2-Ethyl-4-methylimidazole
- Purity
- 95%
- Packaging
- 5g
- Price
- $45.03
- Updated
- 2025/07/31
Sigma-Aldrich
- Product number
- E36652
- Product name
- 2-Ethyl-4-methylimidazole
- Purity
- 95%
- Packaging
- 100g
- Price
- $79.9
- Updated
- 2025/07/31
TCI Chemical
- Product number
- E0232
- Product name
- 2-Ethyl-4-methylimidazole
- Purity
- >95.0%(GC)
- Packaging
- 25g
- Price
- $33
- Updated
- 2025/07/31
TCI Chemical
- Product number
- E0232
- Product name
- 2-Ethyl-4-methylimidazole
- Purity
- >95.0%(GC)
- Packaging
- 100g
- Price
- $87
- Updated
- 2025/07/31
TCI Chemical
- Product number
- E0232
- Product name
- 2-Ethyl-4-methylimidazole
- Purity
- >95.0%(GC)
- Packaging
- 500g
- Price
- $321
- Updated
- 2025/07/31
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2-Ethyl-4-methylimidazole Chemical Properties,Usage,Production
Chemical Properties
clear yellow viscous liquid after melting
Uses
Curing epoxy-resin systems.
Uses
2-Ethyl-4-methylimidazole can be used as a:
- cross-linker for epoxy resins to synthesize network polymers with improved thermal resistance and physical properties.
- curing agent for polysiloxane episulfide resin (PSER).
- catalyst to promote curing of blends of hyperbranched aromatic epoxy polymer and bisphenol F diglycidyl ether.
Definition
ChEBI: 5K8XI641G3 is a member of imidazoles.
Application
2-Ethyl-4-methylimidazole is an important synthetic intermediate. It is used as an intermediate in pharmaceuticals, agrochemicals, dyes, textile auxiliaries, pigments and other organic chemicals. It can be used as a basic ingredient in other active ingredients, as a catalyst in chemical reactions, and in the curing of epoxy resins.
Preparation
2-Ethyl-4-methylimidazole was prepared as follows: diamine and propionitrile have a cyclization reaction sequentially at the temperature of 80-110 °C and 120-140 °C under the catalysis of a catalyst; a product after the cyclization reaction has a dehydrogenation reaction through raney nickel at the temperature of 170-200 °C, and 2-ethyl-4-methylimidazole is obtained.
Flammability and Explosibility
Non flammable
Synthesis
931-35-1
931-36-2
Dehydrogenation reaction: 550 g of 2-ethyl-4-methylimidazole dihydrochloride was placed in a three-necked flask fitted with an electric stirring device. Preparation of Ruanne nickel catalyst: 22 g of Ruanne nickel was added to 60 mL of 20 wt% potassium hydroxide aqueous solution and stirred for 15 min, followed by washing with pure water and ethanol. The prepared nickel ruanne catalyst was added to the reaction system. The reaction system was heated in an oil bath, the temperature was controlled to 190°C, and the reaction was continuously stirred for 3.5 hours. Upon completion of the reaction, the reaction solution was left to clarify, and the upper layer of clarified liquid was separated and removed. The residue was diluted with a small amount of toluene and filtered to remove the Nguyenay Ni catalyst. The filtrates were combined and vacuum distilled. Fractions with boiling points of 150-160°C/10 mmHg were collected to give 488 g of 2-ethyl-4-methylimidazole in 90.4% yield. The product was analyzed by gas chromatography and the purity was greater than 97%.
References
[1] Patent: CN105367499, 2016, A. Location in patent: Paragraph 0019; 0029; 0031; 0032; 0033
2-Ethyl-4-methylimidazole Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2-Ethyl-4-methylimidazole manufacturers
Hebei Fengjia New Material Co., Ltd
- Product
- 2-Ethyl-4-methylimidazole 931-36-2
- Price
- US $3.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 10 tons
- Release date
- 2024-08-22
Hebei Chuanghai Biotechnology Co., Ltd
- Product
- 2-Ethyl-4-methylimidazole 931-36-2
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2024-11-13
HebeiShuoshengImportandExportco.,Ltd
- Product
- 2-Ethyl-4-methylimidazole 931-36-2
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-08-08
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