4-(Phenylsulfonyl)-2-azetidinone

4-(苯磺酰基)-2-氮杂环丁酮

Also known as: 2-Azetidinone, 4-(phenylsulfonyl)-, 4-(Benzenesulfonyl)-2-azetidinone, 4-(Phenylsulfonyl)azetidin-2-one, 4-benzenesulfonyl-azetidin-2-one, 4-phenylsulfonyl-azetidinone, MFCD00272351

4-(Phenylsulfonyl)-2-azetidinone (CAS 31899-01-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H9NO3S and a molecular weight of 211.23800 g/mol. It is also known as 2-Azetidinone, 4-(phenylsulfonyl)-, 4-(Benzenesulfonyl)-2-azetidinone and 4-(Phenylsulfonyl)azetidin-2-one. Key property: a melting point of 150-155ºC(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 31899-01-1
Jingsj CID: J-18012-2
Molecular Formula: C₉H₉NO₃S
Chinese Name: 4-(苯磺酰基)-2-氮杂环丁酮
Molecular Weight: 211.23800 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	150-155ºC(lit.)

Frequently Asked Questions

What is the CAS number of 4-(Phenylsulfonyl)-2-azetidinone?

The CAS number of 4-(Phenylsulfonyl)-2-azetidinone is 31899-01-1.

What are the molecular formula and molecular weight of 4-(Phenylsulfonyl)-2-azetidinone?

4-(Phenylsulfonyl)-2-azetidinone has molecular formula C9H9NO3S and molecular weight 211.23800 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-(Phenylsulfonyl)-2-azetidinone (CAS 31899-01-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18012-2 (accessed 2026-10-23).

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