2-Ethylimidazole

CAS NO.：1072-62-4
Empirical Formula: C5H8N2
Molecular Weight: 96.13
MDL number: MFCD00005192
EINECS: 214-011-5
SAFETY DATA SHEET (SDS)
Update Date: 2026-04-10 10:27:22

What is 2-Ethylimidazole?

Chemical properties

White to slightly yellow flakes

The Uses of 2-Ethylimidazole

2-Ethylimidazole is used as internal standard in the quantification of 4-(5-)methylimidazole (4MI) in coffee by GC-MS method. It is a versatile intermediate used as a building block for active ingredients as well as in epoxy curing.

The Uses of 2-Ethylimidazole

2-Ethylimidazole is a selective catalyst for epoxy and urethanes reactions. 2-Ethylimidazole is used for two components epoxy systems; for modification of epoxy resins and for preparation of polyurethanes.
2-Ethylimidazole has been used as internal standard in the quantification of 4-(5-)methylimidazole (4MI) in coffee by GC-MS method.
Reactions of [RuH(CO)CI(PPh3)3] have been carried out with imidazole, 2-methylimidazole, 2-ethylimidazole and pyrazole in the presence of suitable anions [BF4- ,BPh4-,ClO4-,&PF6-] The reaction products are found to be cationic and have been characterized by elemental analyses, IR, UV/vis and NMR spectral studies.
Microwave plasma reaction of 2-ethylimidazole on poly(dimethylsiloxane) surface has been investigated.

General Description

Microwave plasma reaction of 2-ethylimidazole on poly(dimethylsiloxane) surface has been investigated.

Flammability and Explosibility

Not classified

Properties of 2-Ethylimidazole

Melting point:	78-81 °C (lit.)
Boiling point:	268 °C (lit.)
Density	1.5519 (rough estimate)
vapor pressure	0.047Pa at 20℃
refractive index	1.5000 (estimate)
Flash point:	159 °C
storage temp.	Sealed in dry,Room Temperature
form	powder to crystal
pka	14.38±0.10(Predicted)
color	White to Light yellow
Water Solubility	Soluble in water (617 g/L at 20°C)
BRN	106381
CAS DataBase Reference	1072-62-4(CAS DataBase Reference)
NIST Chemistry Reference	1H-Imidazole, 2-ethyl-(1072-62-4)
EPA Substance Registry System	1H-Imidazole, 2-ethyl- (1072-62-4)

Safety information for 2-Ethylimidazole

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation
Precautionary Statement Codes	P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.