Phenyl p-tolyl sulfone

4-甲基二苯砜

Also known as: 1-methyl-4-(phenylsulfonyl)benzene, 4-methyldiphenyl sulfone, 4-methylphenyl phenyl sulfone, p-tolyl phenyl sulfone, p-methyldiphenyl sulfone, sulfone, phenyl p-tolyl, Benzene, 1-methyl-4-(phenylsulfonyl)-, NSC 2724, NSC 633012, NSC 91059

Phenyl p-tolyl sulfone (CAS 640-57-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H12O2S and a molecular weight of 232.29800 g/mol. It is also known as 1-methyl-4-(phenylsulfonyl)benzene, 4-methyldiphenyl sulfone and 4-methylphenyl phenyl sulfone. Key properties include a melting point of 127-129ºC, a boiling point of 387.9ºC at 760 mmHg, a density of 1.196g/cm3 and a flash point of 229.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
640-57-3
Jingsj CID
J-39030-5
Molecular Formula
C13H12O2S
Chinese Name
4-甲基二苯砜
Molecular Weight
232.29800 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point127-129ºC
Boiling Point387.9ºC at 760 mmHg
Density1.196g/cm3
Flash Point229.7ºC

Frequently Asked Questions

What is the CAS number of Phenyl p-tolyl sulfone?

The CAS number of Phenyl p-tolyl sulfone is 640-57-3.

What are the molecular formula and molecular weight of Phenyl p-tolyl sulfone?

Phenyl p-tolyl sulfone has molecular formula C13H12O2S and molecular weight 232.29800 g/mol.

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

Last updated:

How to cite: Jingsj. "Phenyl p-tolyl sulfone (CAS 640-57-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39030-5 (accessed 2026-10-22).

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