(E)-Ethyl 4-oxobut-2-enoate

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Names

[ CAS No. ]:
2960-66-9

[ Name ]:
(E)-Ethyl 4-oxobut-2-enoate

[Synonym ]:
ethyl fumaraldehydate
Ethyl (2E)-4-oxo-2-butenoate
(E)-Ethyl 4-oxobut-2-enoate
Ethyl (2E)-4-oxobut-2-enoate
ETHYL TRANS-4-OXO-2-BUTENOATE
Ethyl 4-oxobut-2-enoate
4-oxo-but-2-enoic acid ethyl ester
Ethyl 3-formylacrylate~Ethyl fumaraldehydate~trans-4-Oxo-2-butenoic acid ethyl ester
ethyl 3-formylacrylate
2-Butenoic acid, 4-oxo-, ethyl ester, (2E)-
4-oxocrotonic acid ethyl ester
(2E)-4-oxo-2-butenoic acid ethyl ester
(E)-4-oxobut-2-enoic acid ethyl ester

Chemical & Physical Properties

[ Density]:
1.0±0.1 g/cm3

[ Boiling Point ]:
199.3±23.0 °C at 760 mmHg

[ Melting Point ]:
-9ºC

[ Molecular Formula ]:
C6H8O3

[ Molecular Weight ]:
128.126

[ Flash Point ]:
78.6±22.7 °C

[ Exact Mass ]:
128.047348

[ PSA ]:
43.37000

[ LogP ]:
0.00

[ Vapour Pressure ]:
0.3±0.4 mmHg at 25°C

[ Index of Refraction ]:
1.436

[ Storage condition ]:
2-8°C

Safety Information

[ Hazard Codes ]:
C

[ Risk Phrases ]:
R25;R34;R43

[ Safety Phrases ]:
S23-S36/37/39-S45

[ RIDADR ]:
UN 2927

[ Packaging Group ]:
III

[ Hazard Class ]:
8，6.1

[ HS Code ]:
2918300090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Ethyl Sorbate
  • ethyl 4,4-diethoxybut-2-enoate
  • (Z)-3-(ethoxycarbonyl)propenoyl chloride
  • (Z)-2-((E)-4-ethoxy-4-oxobut-2-en-1-ylidene)-1,1,1-trimethylhydrazin-1-ium iodide
  • ethyl 2-((methyl(nitroso)amino)oxy)-4-oxobutanoate
  • (E)-4,4-dimethoxy-but-2-enoic acid ethyl ester
  • Ethyl crotonate
  • Ethyl 2-butenoate
  • ETHYL (2E)-4-HYDROXY-BUT-2-ENOATE

DownStream

  • Ethyl isoxazol-3-carboxylate
  • Ethyl pyrazole-3-carboxylate
  • 1,4-Bis(ethoxycarbonyl)-1,3-butadiene
  • ethyl 4,4-diethoxybut-2-enoate
  • fema 3148
  • ethyl (2E,4E)-2,4-decadienoate
  • D-(+)-Malic acid diethyl ester
  • Diethyl L-malate
  • ethyl 4-hydroxypent-2-enoate
  • Ethyl imidazo[1,2-a]pyridin-3-ylacetate

Customs

[ HS Code ]: 2918300090

[ Summary ]:
2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Related Compounds

  • (E)-ETHYL 4-(4-METHOXYPHENYL)-4-OXOBUT-2-ENOATE
  • (E)-ETHYL 4-(4-BROMOPHENYL)-4-OXOBUT-2-ENOATE
  • (E)-ETHYL 4-(4-FLUOROPHENYL)-4-OXOBUT-2-ENOATE
  • (E)-ETHYL 4-(FURAN-2-YL)-4-OXOBUT-2-ENOATE
  • (E)-ethyl 4-(4-(tert-butyl)phenyl)-4-oxobut-2-enoate
  • (E)-ethyl 4-(3,5-dimethyl-1H-pyrazol-1-yl)-4-oxobut-2-enoate
  • 6H,13H-Pyrazino[1,2-a:4,5-aa(2)]diindole
  • 1-(2-Bromo-1-(pentyloxy)ethyl)-4-methylbenzene
  • 3-[(3-Methoxyphenyl)amino]-6-methylphenol
  • 1-(Bromomethyl)-1-(2,2,2-trifluoroethoxy)cyclopentane
  • 3-(4-Methoxyphenoxy)-4-methylaniline
  • 1-(Bromomethyl)-1-(2,2,2-trifluoroethoxy)cycloheptane
  • [(1-Ethoxy-4-methylcyclohexyl)methyl](methyl)amine
  • 4-(2-Bromoethenyl)benzoic acid
  • (4-Ethyl-1-methoxycyclohexyl)methanamine
  • 3-(Boronic acid pinacol ester)but-3-enyl pivalate
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