urethane

CAS No. 51-79-6

Formula: C3H7NO2
Basic Info

Ethyl carbamate (also called urethane) is a chemical compound with the molecular formula C3H7NO2 first prepared in the nineteenth century. Structurally, it is an ester of carbamic acid. Despite its common name, it is not a component of polyurethanes.

Formula
C3H7NO2
Molecular Weight
89.0932
Exact Mass
89.0477
LogP
0.8019
PSA
52.32
Synonyms

ethyl capronate

Ethyl caproate

ethyl n-heptanoate

carbamic acid ethyl ester

Urethane

Capronic ether absolute

Ethyl hexoate

Hexanoic acid,ethyl ester

ethyl carbaminate

Carbamic acid, ethyl ester

2-Ethyl Hexanoate

caproic acid ethyl ester

methyl,methyl carbamate

Ethyl Carbamate

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Properties
Appearance & Physical State
white crystalline powder
Density
1.1
Boiling Point
182-184ºC
Melting Point
47-51ºC
Flash Point
92ºC
Refractive Index
1.4144 (51ºC)
Water Solubility
slightly soluble
Stability
Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.
Storage Condition
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Vapor Density
3.07 (vs air)
Vapor Pressure
10 mm Hg ( 77.8 °C)
Safety Info
RTECS
FA8400000
Safety Statements
S45-S53
WGK Germany
3
Risk Statements
R45
HS Code
2924199090
Hazard Codes
Spectrum
NMR Spectrum 1H NMR : 90 MHz in CDCl3
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IR Spectrum IR : KBr disc
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Mass Spectrum Mass spectrum (electron ionization)
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Raman Spectrum Raman : 4880 A,200 M,powder
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Toxicity
ACUTE TOXICITY DATA
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Type of Test
LD50 - Lethal dose, 50 percent kill
Exposure Route
Oral
Species Observed
Rodent - rat
Dose/Duration
1809 mg/kg
Toxic Effects
Details of toxic effects not reported other than lethal dose value--
Reference
Cancer Letters (Shannon, Ireland). (Elsevier Scientific Pub. Ireland Ltd., POB 85, Limerick, Ireland) V.1- 1975- Volume(issue)/page/year: 57,37,1991
ACUTE TOXICITY DATA
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Type of Test
LD50 - Lethal dose, 50 percent kill
Exposure Route
Intraperitoneal
Species Observed
Rodent - rat
Dose/Duration
1500 mg/kg
Toxic Effects
Details of toxic effects not reported other than lethal dose value--
Reference
Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 26,1448,1966
ACUTE TOXICITY DATA
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Type of Test
LDLo - Lowest published lethal dose
Exposure Route
Subcutaneous
Species Observed
Rodent - rat
Dose/Duration
1800 mg/kg
Toxic Effects
Details of toxic effects not reported other than lethal dose value--
Reference
Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher information, see NSAPCC. Volume(issue)/page/year: 182,348,1936

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