2-(Methylsulfonyl)-1-phenylethanone

2-(甲磺酰基)苯乙酮

Also known as: 2-(Methylsulfonyl)acetophenone, Methyl Phenacyl Sulfone, Benzoylmethyl Methyl Sulfone, 2-methylsulfonyl-1-phenylethanone, 2-METHYLSULFONYLACETOPHENONE, ALPHA-2-METHYLSULFONYLACETOPHENONE

2-(Methylsulfonyl)-1-phenylethanone (CAS 3708-04-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H10O3S and a molecular weight of 198.23900 g/mol. It is also known as 2-(Methylsulfonyl)acetophenone, Methyl Phenacyl Sulfone and Benzoylmethyl Methyl Sulfone. Key properties include a melting point of 108ºC, a boiling point of 407ºC at 760mmHg, a density of 1.25g/cm3 and a flash point of 263.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3708-04-1
Jingsj CID: J-4829-3
Molecular Formula: C₉H₁₀O₃S
Chinese Name: 2-(甲磺酰基)苯乙酮
Molecular Weight: 198.23900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	108ºC
Boiling Point	407ºC at 760mmHg
Density	1.25g/cm3
Flash Point	263.7ºC
Exact Mass	198.03500
PSA	59.59000
LogP	1.99470
Refractive Index	1.537

Customs & Trade Information

HS Code	2914700090
Summary	HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-(Methylsulfonyl)-1-phenylethanone?

The CAS number of 2-(Methylsulfonyl)-1-phenylethanone is 3708-04-1.

What are the molecular formula and molecular weight of 2-(Methylsulfonyl)-1-phenylethanone?

2-(Methylsulfonyl)-1-phenylethanone has molecular formula C9H10O3S and molecular weight 198.23900 g/mol.

What are the upstream and downstream products of 2-(Methylsulfonyl)-1-phenylethanone?

For 2-(Methylsulfonyl)-1-phenylethanone, Upstream Products: 1-phenyl-2-(trimethylsilyl)acetylene, Dimethyl sulfone, Ethyl benzoate; Downstream Products: 2,5-Diphenylfuran, 1,2-Dibenzoylethane, 2-Phenylbenzimidazole.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-(Methylsulfonyl)-1-phenylethanone (CAS 3708-04-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4829-3 (accessed 2026-10-28).

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