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A11719
Diethyl acetylenedicarboxylate, 96%

CAS: 762-21-0 MDL: MFCD00009186  EINECS: 212-095-8
UN#:UN1760Hazard Class:8Packing Group:III
Alternate Name: Acetylenedicarboxylic acid diethyl ester
Butynedioic acid diethyl ester

 

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Chemical Properties

Formula: CH3CH2O2CC≡CCO2CH2CH3  Flash point: 94°(201°F)
Formula weight: 170.16  Density: 1.067
Melting point: 1-2° Refractive Index: 1.4430
Boiling point: 108-110°/11mm 

Literature References

For reactions of acetylenedicarboxylic esters, see Dimethyl­ acetyl­enedicarboxyl­ate, A11437.

Reaction with enamines leads to 2(1H)-pyridones: Synthesis, 371 (1992).


Other References

Beilstein: 743166
UN#: UN1760
Harmonized Tariff Code:   2917.19

GHS Hazard and Precautionary Statements

Hazard Statements : H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Precautionary Statements : P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A

Do not breathe dust/fume/gas/mist/vapours/spray. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Corrosive

Risk & Safety

Risk Phrases: 34
Causes burns.
Safety Phrases: 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Corrosive
TSCA: No