Triethyl phosphonoacetate

三乙基膦酰乙酸酯

Also known as: Triethyl phosphonoacetate, Diethyl ethoxycarbonylmethanephosphonate, Ethyl 2-(diethoxyphosphoryl)acetate, MFCD00009177

Triethyl phosphonoacetate (CAS 30492-56-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H17O5P and a molecular weight of 224.19100 g/mol. It is also known as Diethyl ethoxycarbonylmethanephosphonate, Ethyl 2-(diethoxyphosphoryl)acetate and MFCD00009177. Key properties include a melting point of -24ºC, a boiling point of 262.3ºC at 760 mmHg 142-145ºC 9 mm Hg(lit.), a density of 1.115 g/cm3 and a flash point of 126.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
30492-56-9
Jingsj CID
J-1004149-9
Molecular Formula
C8H17O5P
Chinese Name
三乙基膦酰乙酸酯
Molecular Weight
224.19100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-24ºC
Boiling Point262.3ºC at 760 mmHg 142-145ºC 9 mm Hg(lit.)
Density1.115 g/cm3
Flash Point126.5ºC

Frequently Asked Questions

What is the CAS number of Triethyl phosphonoacetate?

The CAS number of Triethyl phosphonoacetate is 30492-56-9.

What are the molecular formula and molecular weight of Triethyl phosphonoacetate?

Triethyl phosphonoacetate has molecular formula C8H17O5P and molecular weight 224.19100 g/mol.

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

Last updated:

How to cite: Jingsj. "Triethyl phosphonoacetate (CAS 30492-56-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1004149-9 (accessed 2026-10-22).

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