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2-Methylimidazole

Summary Chemical properties Production Usage
2-Methylimidazole
2-Methylimidazole structure
CAS No.
693-98-1
Chemical Name:
2-Methylimidazole
Synonyms
2MZ;2MI;2MZ-H;2MZ-PW;NSC 21394;Actiron 2MI;Curezol 2MZ;Denka CN 25;Epikure MI 2;Epicure MI 2
CBNumber:
CB6146227
Molecular Formula:
C4H6N2
Formula Weight:
82.1
MOL File:
693-98-1.mol

2-Methylimidazole Properties

Melting point:
142-143 °C (lit.)
Boiling point:
267-268 °C (lit.)
Density 
1.0500 (rough estimate)
vapor pressure 
<1 mm Hg ( 0 °C)
refractive index 
1.4970 (estimate)
Flash point:
155 °C
storage temp. 
2-8°C
solubility 
780g/l
pka
14.44±0.10(Predicted)
form 
Crystalline Powder
color 
White to light yellow
PH
10.5-11.5 (100g/l, H2O, 20℃)
PH Range
10.5
Water Solubility 
Soluble in water and ethanol.
BRN 
1368
InChIKey
LXBGSDVWAMZHDD-UHFFFAOYSA-N
CAS DataBase Reference
693-98-1(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
T0049Z45LZ
Proposition 65 List
2-Methylimidazole
NIST Chemistry Reference
1H-Imidazole, 2-methyl-(693-98-1)
IARC
2B (Vol. 101) 2013
EPA Substance Registry System
2-Methylimidazole (693-98-1)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07,GHS08
Signal word  Danger
Hazard statements  H318-H302-H314-H351-H360
Precautionary statements  P201-P260-P280-P303+P361+P353-P305+P351+P338-P308+P313-P260h-P301+P330+P331-P405-P501a
Hazard Codes  C
Risk Statements  22-34
Safety Statements  26-36/37/39-45-25
RIDADR  UN 3259 8/PG 2
WGK Germany  2
RTECS  NI7175000
Autoignition Temperature >600 °C DIN 51794
Hazard Note  Harmful/Corrosive
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29332990
Toxicity LD50 orally in Rabbit: 1500 mg/kg

2-Methylimidazole price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.18964 2-Methylimidazole for synthesis 693-98-1 5 g $24.7 2021-03-22 Buy
Sigma-Aldrich M50850 2-Methylimidazole 99% 693-98-1 500g $66.9 2021-03-22 Buy
Sigma-Aldrich M50850 2-Methylimidazole 99% 693-98-1 100g $33.1 2021-03-22 Buy
TCI Chemical M0345 2-Methylimidazole >97.0%(GC)(T) 693-98-1 25g $15 2021-03-22 Buy
TCI Chemical M0345 2-Methylimidazole >97.0%(GC)(T) 693-98-1 100g $19 2021-03-22 Buy

2-Methylimidazole Chemical Properties,Uses,Production

Summary

2-Methyl imidazole is also known as 2-methyl-imidazol,which is white needle crystal or crystalline powder at room temperature. Relative molecular mass 82.11. Melting point 145~146℃. Boiling point 267℃. Able to sublimate. Flash point 160℃. Insoluble in cold ether and benzene, soluble in water, alcohols and ketones. Irritating to the skin and mucous membrane. Mice are investigated with LD501400mg/kg by oral. 2-Methylimidazole is the intermediate of producing pranti-trichomonal pesticide, metronidazole (Flagyl). It is also curing agent and curing accelerator of epoxy resin and other resin and plays a special role in the amine curing agent. As temperature curing agent of epoxy resin, it can be used alone and it can produce cured products with high heat distortion temperature after heat treatment in a short period. However, it is mainly used as curing accelerator for powder forming and powder coating which can be obtained by dehydrogenation of 2-methylimidazole.

Chemical properties

Solid. Soluble in water, ethanol, slightly soluble in cold benzene.

Production

1. The product is produced by the following steps: glyoxal, acetaldehyde and ammonia are used as raw materials to produce crude products of 2-methylimidazole after reaction, and then refined by sublimation.
2. Use ethylenediamine and acetonitrile as raw materials, and them react in the presence of sulfur to generate imidazoline., The dehydrogenation occurs below 20℃ with nickel as catalyst to get 2-methylimidazole products.
3. Products can be obtained by reaction of glyoxal and methylamine in the presence of formaldehyde.
4.It can be obtained by dehydrogenation of 2-methylimidazole. Heat 2-methylimidazoline to molten (melting point of 107℃), add active nickel carefully, heat up to 200-210℃ and react for 2h. Cool to 150℃, then add water for dissolving, filter press while hot, separate active nickel, concentrate the filtrate to the temperature at 140℃, discharge and cool to get 2-methylimidazole. The purity of products produced with this method is more than 98%. Product consumes (95%) 1095kg ethylenediamine and 975kg acetonitrile. Using glyoxal and aldehyde as raw materials is better.

Usage

Chemical Properties

white to light yellow crystalline powder

Uses

Hardener or accelerator for epoxy

Uses

2-Methylimidazole is a monomethylated imidazole that can be used as a building block in the preparation of a wide range of biologically active compounds. 2-Methylimidazole as well as other imidazoles can be use as catalyst for refolding of enhanced coloured fluorescent protein. 2-Methylimidazole has been identified as a byproduct of fermentation and is detected in foods and mainstream and side-str eam tobacco smoke.

Hazard

Possible carcinogen.

Purification Methods

Recrystallise 2-methylimidazole from *benzene or pet ether. The picrate has m 215o (from H2O). [Beilstein 23 III/IV 594, 23/5 V 35.]

2-Methylimidazole Preparation Products And Raw materials

Raw materials

Preparation Products


2-Methylimidazole Suppliers

Global( 552)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
HONG KONG IPURE BIOLOGY CO.,LIMITED
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Henan Tianfu Chemical Co.,Ltd.
0371-55170693
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Shanghai Time Chemicals CO., Ltd.
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View Lastest Price from 2-Methylimidazole manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-11-26 2-Methylimidazole
693-98-1
US $13.00 / KG 1KG 99% 100T Baoji Guokang Bio-Technology Co., Ltd.
2021-11-15 2-Methylimidazole
693-98-1
US $0.00 / KG 1KG 99% 200000pcs Hebei Yirun Sega Biological Technology Co. Ltd
2021-11-10 2-Methylimidazole
693-98-1
US $0.00 / Kg/Bag 25KG 99%min 20000kg WUHAN FORTUNA CHEMICAL CO., LTD

2-Methylimidazole Spectrum


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