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Ethyl chloroacetate_Molecular_structure_CAS_105-39-5)
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Ethyl chloroacetate

Catalog No. A15554 Name Alfa Aesar
CAS Number 105-39-5 Website
M. F. C4H7ClO2 Telephone
M. W. 122.55018 Fax
Purity 99% Email
Storage Chembase ID: 123341


IUPAC name
ethyl 2-chloroacetate
IUPAC Traditional name
ethyl chloroacetate
Chloroacetic acid ethyl ester


Merck Index 143783
MDL Number MFCD00000932
CAS Number 105-39-5
EC Number 203-294-0
Beilstein Number 506455


Purity 99%
Boiling Point 142-144°C
Density 1.159
Flash Point 54°C(149°F)
Melting Point -26°C
Refractive Index 1.4210
GHS Pictograms GHS02
GHS Pictograms GHS06
GHS Pictograms GHS09
GHS Hazard statements H301-H311-H331-H226-H400
European Hazard Symbols Toxic Toxic (T)
European Hazard Symbols Nature polluting Nature polluting (N)
GHS Precautionary statements P210-P301+P310-P303+P361+P353-P361-P405-P501A
Risk Statements 23/24/25-50
RTECS AF9110000
Safety Statements 1/2-7/9-45-61
TSCA Listed
Hazard Class 6.1
UN Number UN1181
Packing Group II



  • For examples of use in the Darzens reaction with carbonyl compounds to give glycidic esters, see: Org. Synth. Coll., 3, 727 (1955); 4, 459 (1963); reviews: Org. React., 5, 413 (1949); Chem. Rev., 55, 283 (1955). In the presence of base, glycidic esters rearrange to ɑ-substituted aldehydes: Org. Synth. Coll., 3, 733 (1955):
  • For a theoretical study of a proposed cyclic transition state in the Darzens reaction, see: J. Org. Chem., 61, 6723 (1996).
  • Undergoes phase-transfer catalyzed carbene-like addition to activated alkenes to give cyclopropane derivatives: Synth. Commun., 22, 1651 (1992):
  • Compare (±)-2-Chloropropionic acid, A12860, for a similar reaction.