Ethyl chloroformate

Ethyl chloroformate is an organic compound with the chemical formula ClCO2CH2CH3. It is the ethyl ester of chloroformic acid. It is a colorless, corrosive and highly toxic liquid. It is a reagent used in organic synthesis for the introduction of the ethyl carbamate protecting group and for the formation of carboxylic anhydrides.

Ethyl chloroformate
Names
Preferred IUPAC name
Ethyl carbonochloridate
Other names
  • Cathyl chloride
  • Chloroformic acid ethyl ester
  • Ethyl chlorocarbonate
  • TL-423
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.007.981
EC Number
  • 208-778-5
PubChem CID
RTECS number
  • LQ6125000
UNII
UN number 1182
  • InChI=1S/C3H5ClO2/c1-2-6-3(4)5/h2H2,1H3 Y
    Key: RIFGWPKJUGCATF-UHFFFAOYSA-N Y
  • InChI=1/C3H5ClO2/c1-2-6-3(4)5/h2H2,1H3
    Key: RIFGWPKJUGCATF-UHFFFAOYAX
SMILES
  • ClC(=O)OCC
Properties
ClCO2CH2CH3
Molar mass 108.52 g·mol−1
Appearance Colorless liquid
Odor Like hydrochloric acid
Density 1.1403 g/cm3
Melting point −81 °C (−114 °F; 192 K)
Boiling point 95 °C (203 °F; 368 K)
Decomposes
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Corrosive
Flammable
GHS labelling:
Danger
H225, H302, H314, H330
P210, P233, P240, P241, P242, P243, P260, P264, P270, P271, P280, P284, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P330, P363, P370+P378, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)
4
3
0
W
Flash point 61 °C (142 °F; 334 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references
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