ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate

Also known as: ethyl 3-ethoxy-2-(2,2,2-trifluoroacetyl)acrylate, ethyl 2-(ethoxymethylene)-4,4,4-trifluoroacetoacetate, ethyl ethoxymethylene-3-oxo-4,4,4-trifluorobutyrate, ethyl (2E)-2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutanoate, ethyl 2-(ethoxymethylene)-3-oxo-4,4,4-trifluorobutyrate, Ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate, mixture of cis and trans, Ethyl 2-ethoxymethylene-4,4,4-trifluoro-3-oxobutyrate, MFCD02677683, Butanoic acid, 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxo-, ethyl ester, (2E)-

ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate (CAS 571-55-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H11F3O4 and a molecular weight of 240.176 g/mol. Key properties include a boiling point of 211.6±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 79.7±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 571-55-1
Jingsj CID: J-47983-4
Molecular Formula: C₉H₁₁F₃O₄
Molecular Weight: 240.176 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	211.6±40.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	79.7±22.2 °C
Exact Mass	240.060944
PSA	52.60000
LogP	3.69
Vapor Pressure	0.2±0.4 mmHg at 25°C
Refractive Index	1.406
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate?

The CAS number of ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate is 571-55-1.

What are the molecular formula and molecular weight of ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate?

ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate has molecular formula C9H11F3O4 and molecular weight 240.176 g/mol.

What are the upstream and downstream products of ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate?

For ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate, Upstream Products: Triethyl orthoformate, Ethyl 4,4,4-trifluoroacetoacetate; Downstream Products: 3-(Trifluoromethyl)-1H-pyrazole-4-carboxylic acid, ethyl 2-methyl-4-(trifluoromethyl)pyrimidine-5-carboxylate, 2-Chloro-4-(trifluoromethyl)pyrimidine-5-carboxylic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate (CAS 571-55-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47983-4 (accessed 2026-11-09).

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