Diethyl acetylenedicarboxylate supplier

Name
Diethyl acetylenedicarboxylate
EINECS 212-095-8
CAS No. 762-21-0
Article Data26
CAS DataBase
Density 1.127 g/cm³
Solubility Soluble in ethanol, ethyl ether, CCl4, Insoluble in water.
Melting Point 1-3 °C
Formula C₈H₁₀O₄
Boiling Point 233.9 °C at 760 mmHg
Molecular Weight 170.165
Flash Point 94.4 °C
Transport Information UN 3265 8/PG 2
Appearance clear light yellow liquid
Safety 26-36/37/39-45-25
Risk Codes 34
Molecular Structure
Hazard Symbols C
Synonyms 2-Butynedioicacid, diethyl ester (9CI);Acetylenedicarboxylic acid, diethyl ester(6CI,7CI,8CI);Bis(carboethoxy)acetylene;Bis(ethoxycarbonyl)acetylene;Diethyl1,2-acetylenedicarboxylate;Diethylacetylenedicarboxylate;Diethyl acetylenedicarboxylic acid;
PSA 52.60000
LogP 0.11600

Diethyl acetylenedicarboxylate Specification

1.Introduction of Diethyl acetylenedicarboxylate

The Diethyl 2-butynedioate , with CAS number of 762-21-0, is a kind of clear light yellow liquid. It has synonyms of 2-butynedioic acid, diethyl ester and 2-Butynedioic acid, diethyl ester. Diethyl acetylenedicarboxylate should be stored in shady and cool warehouse and mainly used as reagent.

2.Properties of Diethyl acetylenedicarboxylate

(1) Molecular Weight: 170.1626 (2) H bond acceptors: 4 (3) H bond donors: 0
(4) Freely Rotating Bonds: 5 (5) Polar Surface Area: 52.6 Å2 (6) Index of Refraction: 1.451
(7) Molar Refractivity: 40.66 cm3 (8) Molar Volume: 150.8 cm3 (9) Surface Tension: 39.4 dyne/cm
(10) Density: 1.127 g/cm3 (11) Flash Point: 94.4 °C (12) Enthalpy of Vaporization: 47.06 kJ/mol
(13) Boiling Point: 233.9 °C at 760 mmHg (14) Vapour Pressure: 0.0546 mmHg at 25°C (15) Melting point: 1-3 °C

3.Structure descriptors of Diethyl acetylenedicarboxylate

IUPAC Name: diethyl but-2-ynedioate

InChI: InChI=1S/C8H10O4/c1-3-11-7(9)5-6-8(10)12-4-2/h3-4H2,1-2H3

InChIKey: STRNXFOUBFLVIN-UHFFFAOYSA-N

Canonical SMILES : CCOC(=O)C#CC(=O)OCC

4.Safety information of Diethyl acetylenedicarboxylate

Hazard Codes: Corrosive C
Risk Statements: 34
R34:Causes burns.
Safety Statements: 26-36/37/39-45-25
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.)
S25:Avoid contact with eyes.
RIDADR: UN 3265 8/PG 2
WGK Germany: 3
F: 8-10
HazardClass: 8
PackingGroup: III
HS Code: 29171990

Product Name

Diethyl acetylenedicarboxylate

Diethyl acetylenedicarboxylate Specification

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