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White crystalline powder. Urethane is used in the manufacture of pharmaceuticals, pesticides, and Polyurethane resins.

Chemical structure


Synonyms and Related Terms

urethan; ethyl carbamate; ethyl urethane; carbamic acid ethyl ester


  • Combustible. Flash point = 92 C
  • Toxic by ingestion.
  • Possible carcinogen and teratogen.
  • Fisher Scientific: SDS

Physical and Chemical Properties

Soluble in water, ethanol, ether, glycerol, chloroform. Slightly soluble in olive oil.

Composition CO(NH2)OC2H5
CAS 51-79-6
Melting Point 48-50 C
Density 0.9862 g/ml
Molecular Weight mol. wt = 89.09
Boiling Point 180-184 C

Resources and Citations

  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 10013

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