2-(methylsulfonyl)-1-[3-(trifluoromethyl)phenyl]ethanone

2-(甲基磺酰基)-1-[3-(三氟甲基)苯基]乙酮

Also known as: 1-[3-(trifluoromethyl)benzoyl]dimethylsulfone, 3-(methylsulfonylacetyl)benzotrifluoride, 3-(methylsulphonylacetyl)benzotrifluoride, 2-methylsulfonyl-1-[3-(trifluoromethyl)phenyl]ethanone

2-(methylsulfonyl)-1-[3-(trifluoromethyl)phenyl]ethanone (CAS 128306-96-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H9F3O3S and a molecular weight of 266.23700 g/mol. It is also known as 1-[3-(trifluoromethyl)benzoyl]dimethylsulfone, 3-(methylsulfonylacetyl)benzotrifluoride and 3-(methylsulphonylacetyl)benzotrifluoride. Key properties include a melting point of 92-94ºC, a boiling point of 159.8ºC at 760 mmHg, a density of 1.743g/cm3 and a flash point of 50.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128306-96-7
Jingsj CID
J-1518118-5
Molecular Formula
C10H9F3O3S
Chinese Name
2-(甲基磺酰基)-1-[3-(三氟甲基)苯基]乙酮
Molecular Weight
266.23700 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point92-94ºC
Boiling Point159.8ºC at 760 mmHg
Density1.743g/cm3
Flash Point50.4ºC

Frequently Asked Questions

What is the CAS number of 2-(methylsulfonyl)-1-[3-(trifluoromethyl)phenyl]ethanone?

The CAS number of 2-(methylsulfonyl)-1-[3-(trifluoromethyl)phenyl]ethanone is 128306-96-7.

What are the molecular formula and molecular weight of 2-(methylsulfonyl)-1-[3-(trifluoromethyl)phenyl]ethanone?

2-(methylsulfonyl)-1-[3-(trifluoromethyl)phenyl]ethanone has molecular formula C10H9F3O3S and molecular weight 266.23700 g/mol.

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

Last updated:

How to cite: Jingsj. "2-(methylsulfonyl)-1-[3-(trifluoromethyl)phenyl]ethanone (CAS 128306-96-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1518118-5 (accessed 2026-10-25).

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