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Urethane

Urethane Suppliers list
Company Name: Shenzhen Sendi Biotechnology Co.Ltd.
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Products Intro: Product Name:Urethane
CAS:51-79-6
Purity:99% Package:50/KG
Company Name: Henan DaKen Chemical CO.,LTD.
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Products Intro: Product Name:Urethane
CAS:51-79-6
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
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Products Intro: CAS:51-79-6
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
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Products Intro: Product Name:Urethane
CAS:51-79-6
Company Name: J & K SCIENTIFIC LTD.  
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Products Intro: Product Name:Urethane, 98.5%
CAS:51-79-6
Purity:98.5% Package:250G;50G
Urethane Basic information
Product Name:Urethane
Synonyms:URETHANE;A 11032;a11032;Aethylcarbamat;Aethylurethan;ai3-00553;Aminoformicacidethylester.;carbamated’ethyle
CAS:51-79-6
MF:C3H7NO2
MW:89.09
EINECS:200-123-1
Product Categories:Aliphatics;Amines;Mutagenesis Research Chemicals;BETAPRONE
Mol File:51-79-6.mol
Urethane Structure
Urethane Chemical Properties
Melting point 48-50 °C(lit.)
Boiling point 182-184 °C(lit.)
density 1.10
vapor density 3.07 (vs air)
vapor pressure 10 mm Hg ( 77.8 °C)
refractive index 1.4144
Fp 198 °F
storage temp. Room temperature.
solubility slightly soluble
form Crystals or Crystalline Powder
color White
Water Solubility slightly soluble
Merck 14,9874
BRN 635810
Stability:Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.
CAS DataBase Reference51-79-6(CAS DataBase Reference)
NIST Chemistry ReferenceUrethane(51-79-6)
EPA Substance Registry SystemCarbamic acid, ethyl ester(51-79-6)
Safety Information
Hazard Codes T
Risk Statements 45-22
Safety Statements 53-45-99
RIDADR UN 3077 9 / PGIII
WGK Germany 3
RTECS FA8400000
TSCA Yes
HS Code 29241990
Hazardous Substances Data51-79-6(Hazardous Substances Data)
ToxicityMLD i.p. in mice: 2.1-2.2 g/kg (Franklin)
MSDS Information
ProviderLanguage
Carbamic acid ethyl ester English
SigmaAldrich English
ACROS English
ALFA English
Urethane Usage And Synthesis
DescriptionEthyl carbamate occurs as colourless or white columnar crystals or granular powder. It is very soluble in water. With heat, ethyl carbamate undergoes decomposition and emits toxic fumes of carbon monoxide, carbon dioxide, and nitrogen oxides. Ethyl carbamate is used as an intermediate in the synthesis of a number of chemical products, for example, pharmaceuticals, in biochemical research and medicine, and as a solubiliser and co-solvent for pesticides and fumigants. Prior to World War II, ethyl carbamate saw relatively heavy use in the treatment of multiple myeloma before it was found to be toxic, carcinogenic, and largely ineffective. However, due to U.S. FDA regulations, ethyl carbamate has been withdrawn from pharmaceutical use. However, small quantities of ethyl carbamate are also used in laboratories as an anaesthetic for animals.
Chemical PropertiesColorless crystals or white powder; odorless, saltpeter-like taste. Solutions neutral to litmus. Soluble in water, alcohol, ether, glycerol, and chloroform; slightly soluble in olive oil. Combustible.
UsesNaturally occurring contaminant in fermented foods, particularly wine, stone-fruit brandies, and bread. This substance is reasonably anticipated to be a human carcinogen.
Usesantiinfective
UsesIntermediate in organic synthesis. In the preparation and modification of amino resins. As solvent, solubilizer and cosolvent for various organic materials. Animal anesthetic in laboratory procedures.
General DescriptionOdorless colorless crystals or white powder. Sublimes readily at 217°F and 54 mm Hg. Cooling saline taste.
Air & Water ReactionsWater soluble. Aqueous solutions are neutral to litmus .
Reactivity ProfileUrethane is incompatible with alkalis, acids, chloral hydrate, camphor, menthol and thymol. Also incompatible with antipyrine and salol. May react with strong oxidizing agents. Liquefies with benzoic acid, resorcinol and salicylic acid. Reacts with phosphorus pentachloride to form an explosive product .
HazardToxic by ingestion.
Purification MethodsUrethane is best purified by fractional distillation, but it can be 20 25 1.4144. sublimed at ~103o/~50mm. It has also been recrystallised from *benzene. Its solubilitiy at room temperature is 2g/mL in H2O, 1.25g/mL in EtOH, 1.1g/mL in CHCl3, 0.67g/mL in Et2O and 0.03g/mL in olive oil. It is a suspected human carcinogen.[Beilstein 3 H 22, 3 IV 40.]
Tag:Urethane(51-79-6) Related Product Information
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