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IUPAC name 1,3-Dimethyl-2-imidazolidinone
Other names Dimethylethyleneurea
Abbreviations DMI
CAS number 80-73-9
PubChem 6661
Molecular formula C5H10N2O
Molar mass 114.1457
Appearance Clear liquid
Melting point

8.2 °C, 281 K, 47 °F

Boiling point

225 °C, 498 K, 437 °F

Flash point 120 °C
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

1,3-Dimethyl-2-imidazolidinone (DMI) is used as an aprotic solvent. It is colourless, transparent, highly polar and has high thermal and chemical stability.

DMI has a boiling point of 225 °C, a flash point of 120 °C and a melting point of 8.2 °C.[1] DMI has excellent solvating ability for both inorganic and organic compounds.

DMI can is used in a variety of applications including detergents, dyestuffs, electronic materials and in the manufacture of polymers. In many applications, it is a suitable replacement for the carcinogenic solvent HMPA.[2]


  1. ^ DMI at Mitsui Chemicals
  2. ^ Lo, Chi-Chu (1992). "Replacement of carcinogenic solvent HMPA by DMI in insect sex pheromone synthesis". Journal of Chemical Ecology 18 (2). doi:10.1007/BF00982095.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "1,3-Dimethyl-2-imidazolidinone". A list of authors is available in Wikipedia.
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