Diethyl 2-propynylmalonate

2-丙炔基丙二酸二乙酯

Also known as: Propargylmalonic Acid Diethyl Ester, Diethyl propargylmalonate, 2-Propynylmalonic Acid Diethyl Ester, 2-propargylmalonic acid diethyl ester, MALONIC ACID,2-PROPYNYL-,DIETHYL ESTER, USAF KF-9, diethyl 2-prop-2-ynylpropanedioate, Diethyl 2-(prop-2-yn-1-yl)malonate

Diethyl 2-propynylmalonate (CAS 17920-23-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H14O4 and a molecular weight of 198.21600 g/mol. It is also known as Propargylmalonic Acid Diethyl Ester, Diethyl propargylmalonate and 2-Propynylmalonic Acid Diethyl Ester. Key properties include a boiling point of 259.7ºC at 760mmHg, a density of 1.073g/cm3 and a flash point of 121 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17920-23-9
Jingsj CID
J-1412789-2
Molecular Formula
C10H14O4
Chinese Name
2-丙炔基丙二酸二乙酯
Molecular Weight
198.21600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point259.7ºC at 760mmHg
Density1.073g/cm3
Flash Point121 °C

Frequently Asked Questions

What is the CAS number of Diethyl 2-propynylmalonate?

The CAS number of Diethyl 2-propynylmalonate is 17920-23-9.

What are the molecular formula and molecular weight of Diethyl 2-propynylmalonate?

Diethyl 2-propynylmalonate has molecular formula C10H14O4 and molecular weight 198.21600 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Diethyl 2-propynylmalonate (CAS 17920-23-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1412789-2 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.