Diethyl acetylenedicarboxylate

丁炔二酸二乙酯

Also known as: 2-Butynedioic acid diethyl ester, Acetylenedicarboxylic acid diethyl ester, Bis(ethoxycarbonyl)acetylene, Diethyl butynedioate, Diethyl 2-butynedioate, diethyl but-2-ynedioate, Diethyl but-2-yne-1,4-dioate

CAS No.
762-21-0
Jingsj CID
J-3427-6
Molecular Formula
C8H10O4
Chinese Name
丁炔二酸二乙酯
Molecular Weight
170.163 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point1-3 °C
Boiling Point233.9±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point94.4±0.0 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of Diethyl acetylenedicarboxylate?

762-21-0

What are the molecular formula and molecular weight of Diethyl acetylenedicarboxylate?

C8H10O4, molecular weight 170.163 g/mol

Is Diethyl acetylenedicarboxylate hazardous?

Danger

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026