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ChemicalBook--->CAS DataBase List--->762-21-0

762-21-0

762-21-0 Structure

762-21-0 Structure
IdentificationMore
[Name]

Diethyl acetylenedicarboxylate
[CAS]

762-21-0
[Synonyms]

2-butynedioic acid diethyl ester
ACETYLENEDICARBOXYLIC ACID DIETHYL ESTER
DIETHYL ACETYLENEDICARBOXYLATE
DIETHYL BUTYNEDIOATE
Bis-(Ethoxycarbonyl)acetylene
Diethyl 2-butynedioate
butynedioic acid diethyl ester
but-2-ynedioic acid diethyl ester
YL2-BUTYNEDIOATE
Diethyl but-2-yne-1,4-dioate
Bis(carboethoxy)acetylene
Diethyl acetylenedicarboxylic acid
[EINECS(EC#)]

212-095-8
[Molecular Formula]

C8H10O4
[MDL Number]

MFCD00009186
[Molecular Weight]

170.16
[MOL File]

762-21-0.mol
Chemical PropertiesBack Directory
[Appearance]

CLEAR LIGHT YELLOW LIQUID
[Melting point ]

1-3 °C
[Boiling point ]

107-110 °C11 mm Hg(lit.)
[density ]

1.063 g/mL at 25 °C(lit.)
[refractive index ]

n20/D 1.443(lit.)
[Fp ]

202 °F
[storage temp. ]

0-6°C
[form ]

Liquid
[color ]

Clear light yellow
[Specific Gravity]

1.063
[Water Solubility ]

Soluble in ethanol, ethyl ether, CCl4, Insoluble in water.
[BRN ]

743166
[CAS DataBase Reference]

762-21-0(CAS DataBase Reference)
[NIST Chemistry Reference]

Diethylacetylene dicarboxylate(762-21-0)
Safety DataBack Directory
[Hazard Codes ]

C
[Risk Statements ]

R34:Causes burns.
[Safety Statements ]

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 label where possible) .
S25:Avoid contact with eyes .
[RIDADR ]

UN 3265 8/PG 2
[WGK Germany ]

3
[F ]

8-10
[HazardClass ]

8
[PackingGroup ]

III
[HS Code ]

29171990
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2-Butynedioic acid diethyl ester(762-21-0).msds
Hazard InformationBack Directory
[Chemical Properties]

CLEAR LIGHT YELLOW LIQUID
[Uses]

Diethyl acetylenedicarboxylate is used as a protein cross-linker. It is also used in the synthesis of 3,4,5-trisubstituted 2(5H)-furanone derivatives, highly functionalized thiazolidinone derivatives, novel cyclic peroxide glucosides and 4,11-dimesitylbisanthene, soluble bisanthene derivative, via Diels-Alder reaction.
[General Description]

Diethyl acetylenedicarboxylate is a protein cross-linker.
[Purification Methods]

Dissolve the ester in *C6H6, wash it with NaHCO3, H2O, dry over Na2SO4, filter, evaporate and distil it in a vacuum [IR: Walton & Hughes J Am Chem Soc 79 3985 1957, Truce & Kruse J Am Chem Soc 81 5372 1959]. [Beilstein 2 H 803.]
Spectrum DetailBack Directory
[Spectrum Detail]

Diethyl acetylenedicarboxylate(762-21-0)MS
Diethyl acetylenedicarboxylate(762-21-0)1HNMR
Diethyl acetylenedicarboxylate(762-21-0)13CNMR
Diethyl acetylenedicarboxylate(762-21-0)IR1
Diethyl acetylenedicarboxylate(762-21-0)IR2
Diethyl acetylenedicarboxylate(762-21-0)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Diethyl acetylenedicarboxylate, 97%(762-21-0)
[Alfa Aesar]

Diethyl acetylenedicarboxylate, 96%(762-21-0)
[Sigma Aldrich]

762-21-0(sigmaaldrich)
[TCI AMERICA]

Diethyl Acetylenedicarboxylate,>95.0%(GC)(762-21-0)
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