1-(5-Chlorothiophen-2-yl)-2,2,2-trifluoroethan-1-one

1-(5-氯噻吩-2-基)-2,2,2-三氟乙烷-1-酮

Also known as: 2-CHLORO-5-TRIFLUOROACETYLTHIOPHENE, 1-(5-chloro-2-thienyl)-2,2,2-trifluoro-ethanone, Ethanone, 1-(5-chloro-2-thienyl)-2,2,2-trifluoro-, 2-Chloro-5-(trifluoroacetyl)thiophene, 1-(5-chloro-[2]thienyl)-2,2,2-trifluoro-ethanone

1-(5-Chlorothiophen-2-yl)-2,2,2-trifluoroethan-1-one (CAS 771-83-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H2ClF3OS and a molecular weight of 214.59300 g/mol. It is also known as 2-CHLORO-5-TRIFLUOROACETYLTHIOPHENE, 1-(5-chloro-2-thienyl)-2,2,2-trifluoro-ethanone and Ethanone, 1-(5-chloro-2-thienyl)-2,2,2-trifluoro-. Key properties include a boiling point of 233.5ºC at 760 mmHg, a density of 1.546g/cm3 and a flash point of 95ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
771-83-5
Jingsj CID
J-1082594-9
Molecular Formula
C6H2ClF3OS
Chinese Name
1-(5-氯噻吩-2-基)-2,2,2-三氟乙烷-1-酮
Molecular Weight
214.59300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point233.5ºC at 760 mmHg
Density1.546g/cm3
Flash Point95ºC

Frequently Asked Questions

What is the CAS number of 1-(5-Chlorothiophen-2-yl)-2,2,2-trifluoroethan-1-one?

The CAS number of 1-(5-Chlorothiophen-2-yl)-2,2,2-trifluoroethan-1-one is 771-83-5.

What are the molecular formula and molecular weight of 1-(5-Chlorothiophen-2-yl)-2,2,2-trifluoroethan-1-one?

1-(5-Chlorothiophen-2-yl)-2,2,2-trifluoroethan-1-one has molecular formula C6H2ClF3OS and molecular weight 214.59300 g/mol.

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

Last updated:

How to cite: Jingsj. "1-(5-Chlorothiophen-2-yl)-2,2,2-trifluoroethan-1-one (CAS 771-83-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1082594-9 (accessed 2026-10-25).

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