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

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. 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-47424-8
Molecular Formula
C24H20F3O3P
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
Exact Mass444.11000
PSA53.18000
LogP3.84740
Refractive Index1.565

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

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.

What are the upstream and downstream products of Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate?

For Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetate, Upstream Products: Trifluoroacetic anhydride, (Ethoxycarbonylmethyl)triphenylphosphonium bromide, Triphenylphosphine; Downstream Products: Ethyl 4,4,4-trifluoro-2-butynoate.

Data compiled from public chemical databases such as PubChem 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-47424-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.