Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate

4,4,4-三氟-2-(三苯基正膦亚基)乙酰乙酸乙酯

Also known as: 4,4,4-Trifluoro-3-oxo-2-(triphenylphosphoranylidene)butanoic acid ethyl ester, Butanoic acid, 4,4,4-trifluoro-3-oxo-2-(triphenylphosphoranylidene)-, ethyl ester, Ethyl 4,4,4-trifluoro-3-oxo-2-(triphenyl-λ5-phosphanylidene)butanoate, Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate

Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate (CAS 83961-56-2) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C24H20F3O3P and a molecular weight of 444.38300 g/mol. It is also known as 4,4,4-Trifluoro-3-oxo-2-(triphenylphosphoranylidene)butanoic acid ethyl ester, Butanoic acid, 4,4,4-trifluoro-3-oxo-2-(triphenylphosphoranylidene)-, ethyl ester and Ethyl 4,4,4-trifluoro-3-oxo-2-(triphenyl-λ5-phosphanylidene)butanoate. Key properties include a melting point of 128-130ºC(lit.), a boiling point of 500.8ºC at 760 mmHg, a density of 1.28g/cm3 and a flash point of 256.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
83961-56-2
Jingsj CID
J-47424-1
Molecular Formula
C24H20F3O3P
Chinese Name
4,4,4-三氟-2-(三苯基正膦亚基)乙酰乙酸乙酯
Molecular Weight
444.38300 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point128-130ºC(lit.)
Boiling Point500.8ºC at 760 mmHg
Density1.28g/cm3
Flash Point256.7ºC

Frequently Asked Questions

What is the CAS number of Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate?

The CAS number of Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate is 83961-56-2.

What are the molecular formula and molecular weight of Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate?

Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate has molecular formula C24H20F3O3P and molecular weight 444.38300 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate (CAS 83961-56-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47424-1 (accessed 2026-10-22).

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