Product Name

  • Name

    Ethyl malonyl chloride

  • EINECS 252-934-5
  • CAS No. 36239-09-5
  • Article Data34
  • CAS DataBase
  • Density 1.223 g/cm3
  • Solubility Reacts with water
  • Melting Point
  • Formula C5H7ClO3
  • Boiling Point 172.4 °C at 760 mmHg
  • Molecular Weight 150.562
  • Flash Point 65 °C
  • Transport Information UN 3265 8/PG 3
  • Appearance clear yellow to brown liquid
  • Safety 7-26-36/37/39-45-36/39
  • Risk Codes 14-34
  • Molecular Structure Molecular Structure of 36239-09-5 (Ethyl malonyl chloride)
  • Hazard Symbols CorrosiveC
  • Synonyms Aceticacid, (chloroformyl)-, ethyl ester (6CI,7CI);(Chlorocarbonyl)acetic acid ethylester;(Chloroformyl)acetic acid ethyl ester;(Ethoxycarbonyl)acetyl chloride;2-(Ethoxycarbonyl)acetyl chloride;3-Chloro-3-oxopropanoic acid ethyl ester;Carbethoxyacetyl chloride;Carbethoxyethanoyl chloride;Carboethoxyacetylchloride;Ethoxymalonyl chloride;Ethyl (chlorocarbonyl)acetate;Ethyl(chloroformyl)acetate;Ethyl 3-chloro-3-oxopropanoate;Ethyl3-chloro-3-oxopropionate;Ethyl 3-oxo-3-chloropropanoate;
  • PSA 34.14000
  • LogP 1.54340

Synthetic route

hydrogen ethyl malonate
1071-46-1

hydrogen ethyl malonate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
With thionyl chloride91%
With thionyl chloride; N,N-dimethyl-formamide In chloroform Heating;70%
With oxalyl dichloride In dichloromethane for 3h; Reflux;69%
ethyl potassium malonate
6148-64-7

ethyl potassium malonate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
With oxalyl dichloride In benzene for 1h; Ambient temperature;90%
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 0 - 20℃; for 2h; Inert atmosphere;41%
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 0 - 20℃; for 2h; Inert atmosphere;
diethyl malonate
105-53-3

diethyl malonate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
(i) (hydrolysis), (ii) SOCl2, PhNMe2; Multistep reaction;
Multi-step reaction with 2 steps
1: KOH / ethanol / 1 h / 0 - 20 °C
2: 90 percent / oxaloyl chloride / benzene / 1 h / Ambient temperature
View Scheme
Multi-step reaction with 3 steps
1: water; sodium hydroxide / ethanol / 1 h / Reflux
2: hydrogenchloride; water / pH 3
3: thionyl chloride / 72 h / 20 °C
View Scheme
Phthaloyl dichloride
88-95-9

Phthaloyl dichloride

monoethyl malonate

monoethyl malonate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
at 100 - 110℃; und Fraktionieren unter 20-25 mm;
potassium alone ester

potassium alone ester

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
With thionyl chloride at 0℃;
potassium salt of malonic acid monoethyl ester

potassium salt of malonic acid monoethyl ester

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
With thionyl chloride; diethyl ether
thionyl chloride
7719-09-7

thionyl chloride

hydrogen ethyl malonate
1071-46-1

hydrogen ethyl malonate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

diethyl malonate
105-53-3

diethyl malonate

isobutylidenacetoacetic acid ester

isobutylidenacetoacetic acid ester

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 79 percent / aq. KOH
2: 91 percent / SOCl2
View Scheme
diethyl malonate
105-53-3

diethyl malonate

diazotized 3-bromo-4-methyl-aniline

diazotized 3-bromo-4-methyl-aniline

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: KOH / ethanol
2: SOCl2
View Scheme
benzyl 2-(2-ethoxy-2-ethoxyethyl)-1-hydrazinecarboxylate
4503-58-6

benzyl 2-(2-ethoxy-2-ethoxyethyl)-1-hydrazinecarboxylate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

benzyl 2-ethoxycarbonylacetyl-2-(ethoxycarbonylmethyl)hydrazine-1-carboxylate
98381-05-6

benzyl 2-ethoxycarbonylacetyl-2-(ethoxycarbonylmethyl)hydrazine-1-carboxylate

Conditions
ConditionsYield
With triethylamine In benzene 1.) 0 deg C, 1 h, 2.) RT, 19 h;100%
With triethylamine In benzene Yield given;
phenylalanine ethyl ester
1795-96-6

phenylalanine ethyl ester

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

N-(3-ethoxy-1,3-dioxopropyl)-DL-phenylalanine ethyl ester
80361-20-2

N-(3-ethoxy-1,3-dioxopropyl)-DL-phenylalanine ethyl ester

Conditions
ConditionsYield
With potassium carbonate In diethyl ether; water ice bath;100%
ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

benzylamine
100-46-9

benzylamine

ethyl (N-benzylcarbamoyl)acetate
29689-63-2

ethyl (N-benzylcarbamoyl)acetate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 1h;100%
In hexane; dichloromethane96.8%
In dichloromethane for 2h; Yield given;
ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

5-chloro-4,2'-dimethyl-2-mercaptobenzophenone
170799-07-2

5-chloro-4,2'-dimethyl-2-mercaptobenzophenone

ethyl 4-chloro-5-methyl-2-(2-methylbenzoyl)phenylthiocarbonylacetate
170799-08-3

ethyl 4-chloro-5-methyl-2-(2-methylbenzoyl)phenylthiocarbonylacetate

Conditions
ConditionsYield
With triethylamine In dichloromethane for 0.5h;100%
ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

3-methoxy-4-(1,3-oxazol-5-yl)aniline
198821-79-3

3-methoxy-4-(1,3-oxazol-5-yl)aniline

3-[[3-Methoxy-4-(5-oxazolyl)phenyl]amino]-3-oxopropanoic Acid Ethyl Ester
267405-89-0

3-[[3-Methoxy-4-(5-oxazolyl)phenyl]amino]-3-oxopropanoic Acid Ethyl Ester

Conditions
ConditionsYield
With triethylamine In dichloromethane100%
ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

12-diphenylphosphanyl-dodecan-1-ol; compound with borane

12-diphenylphosphanyl-dodecan-1-ol; compound with borane

malonic acid 12-diphenylphosphanyl-dodecyl ester ethyl ester; compound with borane

malonic acid 12-diphenylphosphanyl-dodecyl ester ethyl ester; compound with borane

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃;100%
1-Pentyne
627-19-0

1-Pentyne

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

3-oxo-oct-4-ynoic acid ethyl ester
861144-51-6

3-oxo-oct-4-ynoic acid ethyl ester

Conditions
ConditionsYield
Stage #1: 1-Pentyne With isopropylmagnesium chloride In tetrahydrofuran at 20℃; for 6h;
Stage #2: ethyl chlorocarbonylacetate In tetrahydrofuran at 0 - 20℃;
100%
amonafide
69408-81-7

amonafide

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-({2-[2-(dimethylamino)ethyl]-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-5-yl}amino)-3-oxopropanoate

ethyl 3-({2-[2-(dimethylamino)ethyl]-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-5-yl}amino)-3-oxopropanoate

Conditions
ConditionsYield
In acetonitrile at 20℃; for 16h;100%
In acetonitrile at 20℃; for 16h;
N-tert-butyl-N'-(4-fluorobenzylidene)hydrazine
389609-34-1

N-tert-butyl-N'-(4-fluorobenzylidene)hydrazine

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

C16H21FN2O3
1162647-07-5

C16H21FN2O3

Conditions
ConditionsYield
With pyridine In ethyl acetate at 20℃; for 3h;100%
1-(3-methyl-butylamino)-1H-pyrrole-2-carboxylic acid allyl ester
1000312-80-0

1-(3-methyl-butylamino)-1H-pyrrole-2-carboxylic acid allyl ester

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

C18H26N2O5

C18H26N2O5

Conditions
ConditionsYield
In 1,4-dioxane at 100℃; for 1h;100%
ethyl 3-amino-1-(4-bromophenyl)-1H-pyrrole-2-carboxylate hydrochloride
1272673-95-6

ethyl 3-amino-1-(4-bromophenyl)-1H-pyrrole-2-carboxylate hydrochloride

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 1-(4-bromophenyl)-3-{[3-(ethyloxy)-3-oxopropanoyl]amino}-1H-pyrrole-2-carboxylate
1272673-97-8

ethyl 1-(4-bromophenyl)-3-{[3-(ethyloxy)-3-oxopropanoyl]amino}-1H-pyrrole-2-carboxylate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; Product distribution / selectivity;100%
C23H36N2O7

C23H36N2O7

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

C28H42N2O10

C28H42N2O10

Conditions
ConditionsYield
With pyridine; dmap In dichloromethane at 20℃;100%
7-(4-benzyloxy-3-isopropylphenoxy)-6-bromoindan-4-ylamine
575504-93-7

7-(4-benzyloxy-3-isopropylphenoxy)-6-bromoindan-4-ylamine

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl N-[6-bromo-7-(4-benzyloxy-3-isopropylphenoxy)indan-4-yl]malonamate
1380075-78-4

ethyl N-[6-bromo-7-(4-benzyloxy-3-isopropylphenoxy)indan-4-yl]malonamate

Conditions
ConditionsYield
With pyridine In dichloromethane at 0 - 20℃; for 3h;100%
2-amino-5-chlorobenzaldehyde
20028-53-9

2-amino-5-chlorobenzaldehyde

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-(4-chloro-2-formylphenylamino)-3-oxopropanoate

ethyl 3-(4-chloro-2-formylphenylamino)-3-oxopropanoate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 1h; Inert atmosphere;100%
4-(phenylamino)morpholin-3-one

4-(phenylamino)morpholin-3-one

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-oxo-3-((3-oxomorpholinyl)(phenyl)amino)propanoate

ethyl 3-oxo-3-((3-oxomorpholinyl)(phenyl)amino)propanoate

Conditions
ConditionsYield
With sodium carbonate In dichloromethane at 20℃; for 4h;100%
With sodium carbonate In dichloromethane at 20℃; for 4h;100%
2-amino-5-methylbenzophenone
17852-28-7

2-amino-5-methylbenzophenone

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 2-[(2-benzoyl-4-methylphenyl)carbamoyl]acetate

ethyl 2-[(2-benzoyl-4-methylphenyl)carbamoyl]acetate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 1h; Inert atmosphere;100%
methyl 5-chloro-2-((methyl-d3)amino)nicotinate

methyl 5-chloro-2-((methyl-d3)amino)nicotinate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 6-chloro-4-hydroxy-1-(methyl-d3)-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxylate

ethyl 6-chloro-4-hydroxy-1-(methyl-d3)-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxylate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 60℃; for 8h; Microwave irradiation; Inert atmosphere; Sealed tube;100%
2-(3,4-dimethoxyphenyl)-ethylamine
120-20-7

2-(3,4-dimethoxyphenyl)-ethylamine

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

N-[2-(3,4-dimethoxyphenyl)ethyl]malonic acid ethyl ester amide
79641-41-1

N-[2-(3,4-dimethoxyphenyl)ethyl]malonic acid ethyl ester amide

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 20 - 30℃; for 16h;99%
With potassium carbonate In diethyl ether; chloroform at 0℃;98%
at 0℃;98%
aniline
62-53-3

aniline

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-oxo-3-(phenylamino)propionate
53341-66-5

ethyl 3-oxo-3-(phenylamino)propionate

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 0℃; for 0.5h;99%
With triethylamine In tetrahydrofuran at 0℃; for 0.5h;99%
With dmap; triethylamine In dichloromethane at 10 - 20℃; for 3h;94%
ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

2-bromoaniline
615-36-1

2-bromoaniline

N-(2-bromo-phenyl)malonamic acid ethyl ester
880883-60-3

N-(2-bromo-phenyl)malonamic acid ethyl ester

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 24h;99%
3-trifluoromethylaniline
98-16-8

3-trifluoromethylaniline

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-oxo-3-{[3-(trifluoromethyl)phenyl]amino}propanoate
15386-86-4

ethyl 3-oxo-3-{[3-(trifluoromethyl)phenyl]amino}propanoate

Conditions
ConditionsYield
With triethylamine In acetone at 20℃;99%
With triethylamine In acetone at 0 - 20℃;99%
With triethylamine In acetone at 20℃;99%
4-chloro-aniline
106-47-8

4-chloro-aniline

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-(4-chloroanilino)-3-oxopropionate
15386-84-2

ethyl 3-(4-chloroanilino)-3-oxopropionate

Conditions
ConditionsYield
With triethylamine In dichloromethane99%
With pyridine In dichloromethane at 0 - 20℃;
With pyridine In dichloromethane at 0 - 20℃;
glycine tert-butyl ester hydrochloride
27532-96-3

glycine tert-butyl ester hydrochloride

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-(2-tert-butoxy-2-oxoethylamino)-3-oxopropanoate
669000-19-5

ethyl 3-(2-tert-butoxy-2-oxoethylamino)-3-oxopropanoate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0 - 20℃; Inert atmosphere;99%
5-fluoro-2-nitroaniline
2369-11-1

5-fluoro-2-nitroaniline

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-[(5-fluoro-2-nitrophenyl)amino]-3-oxopropanoate
1214254-63-3

ethyl 3-[(5-fluoro-2-nitrophenyl)amino]-3-oxopropanoate

Conditions
ConditionsYield
In toluene at 0℃; Reflux;99%
1-(3-amino-5-(trifluoromethyl)pyridin-2-yl)ethanone
1393534-23-0

1-(3-amino-5-(trifluoromethyl)pyridin-2-yl)ethanone

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-(2-acetyl-5-(trifluoromethyl)pyridin-3-ylamino)-3-oxopropanoate
1610779-46-8

ethyl 3-(2-acetyl-5-(trifluoromethyl)pyridin-3-ylamino)-3-oxopropanoate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0 - 23℃; for 3h;99%
With triethylamine In dichloromethane at 0 - 30℃; for 3h;
5-trimethylsilanyl-pent-4-yn-1-ol
13224-84-5

5-trimethylsilanyl-pent-4-yn-1-ol

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 5-(trimethylsilyl)pent-4-yn-1-yl propanedioate

ethyl 5-(trimethylsilyl)pent-4-yn-1-yl propanedioate

Conditions
ConditionsYield
With pyridine In dichloromethane at 0 - 25℃; for 1h;99%
With pyridine In dichloromethane at 0 - 20℃; for 16h; Inert atmosphere;98%
With pyridine In dichloromethane at 0 - 20℃; for 21h; Inert atmosphere;89.1%
4-{{2'-{2''-[2'''-(2''''-chloroethoxy)ethoxy]ethoxy}ethoxy}}butanol

4-{{2'-{2''-[2'''-(2''''-chloroethoxy)ethoxy]ethoxy}ethoxy}}butanol

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

4-{{2'-{2''-[2'''-(2''''-chloroethoxy)ethoxy]ethoxy}ethoxy}}butyl ethyl malonate

4-{{2'-{2''-[2'''-(2''''-chloroethoxy)ethoxy]ethoxy}ethoxy}}butyl ethyl malonate

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 0 - 20℃; Inert atmosphere;99%
N-[(4,6-dichloropyridin-3-yl)methyl]-2,6-difluoro-3,5-dimethoxy aniline

N-[(4,6-dichloropyridin-3-yl)methyl]-2,6-difluoro-3,5-dimethoxy aniline

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-[[(4,6-dichloropyridin-3-yl)methyl](2,6-difluoro-3,5-dimethoxyphenyl)amino]-3-oxopropanoate

ethyl 3-[[(4,6-dichloropyridin-3-yl)methyl](2,6-difluoro-3,5-dimethoxyphenyl)amino]-3-oxopropanoate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 0.166667h; Reagent/catalyst;98.7%
Stage #1: N-[(4,6-dichloropyridin-3-yl)methyl]-2,6-difluoro-3,5-dimethoxy aniline With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 0.166667h;
Stage #2: ethyl chlorocarbonylacetate In tetrahydrofuran; mineral oil at 20℃; for 1h;
91%
Stage #1: N-[(4,6-dichloropyridin-3-yl)methyl]-2,6-difluoro-3,5-dimethoxy aniline With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 0.166667h;
Stage #2: ethyl chlorocarbonylacetate In tetrahydrofuran; mineral oil for 1h;
tryptamine
61-54-1

tryptamine

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

ethyl 3-{[2-(1H-indol-3-yl)ethyl]amino}-3-oxopropanoate
126412-13-3

ethyl 3-{[2-(1H-indol-3-yl)ethyl]amino}-3-oxopropanoate

Conditions
ConditionsYield
98%
With sodium hydroxide In dichloromethane for 1h; Ambient temperature;93%
With sodium hydroxide In dichloromethane; water at 0 - 20℃; for 1.5h;88%
ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

5-(3-methoxybenzyl)hept-6-enoic acid benzylamide
184358-00-7

5-(3-methoxybenzyl)hept-6-enoic acid benzylamide

N-benzyl-N-[5-(3-methoxybenzyl)hept-6-enoyl]malonamic acid ethyl ester
184358-17-6

N-benzyl-N-[5-(3-methoxybenzyl)hept-6-enoyl]malonamic acid ethyl ester

Conditions
ConditionsYield
In benzene for 1h; Heating;98%

Ethyl malonyl chloride Chemical Properties

Molecular structure of Ethyl malonyl chloride (CAS NO.36239-09-5) is:

Product Name: Ethyl malonyl chloride
CAS Registry Number: 36239-09-5
IUPAC Name: ethyl 3-chloro-3-oxopropanoate 
Molecular Weight: 150.56028 [g/mol]
Molecular Formula: C5H7ClO3
XLogP3: 1.3
H-Bond Donor: 0
H-Bond Acceptor: 3
EINECS: 252-934-5 
Surface Tension: 35 dyne/cm
Density: 1.223 g/cm3
Flash Point: 65 °C
Enthalpy of Vaporization: 40.87 kJ/mol
Boiling Point: 172.4 °C at 760 mmHg
Vapour Pressure: 1.34 mmHg at 25°C
Refractive index: n20/D 1.429(lit.)
Storage temp.: 2-8 °C
Water Solubility: Reacts
Sensitive: Moisture Sensitive
Product Categories: Aliphatics

Ethyl malonyl chloride Safety Profile

Safty information about Ethyl malonyl chloride (CAS NO.36239-09-5) is:
Hazard Codes: CorrosiveC
Risk Statements: 14-34 
R14 :Reacts violently with water. 
R34:Causes burns.
Safety Statements: 7-26-36/37/39-45-36/39 
S7:Keep container tightly closed. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S36/39:Wear suitable protective clothing and eye / face protection.
RIDADR: UN 3265 8/PG 3
WGK Germany: 3
F: 10-21
Hazard Note: Corrosive
HazardClass: 8
PackingGroup: II

Ethyl malonyl chloride Specification

 Ethyl malonyl chloride , its cas register number is 36239-09-5. It also can be called Propanoic acid, 3-chloro-3-oxo-, ethyl ester ; Ethyl (chloroformyl)acetate ; Ethyl 3-chloro-3-oxopropionate .It is a clear yellow to brown liquid.

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