(S)-(-)-Methyl p-tolyl sulfoxide

(S)-(-)-甲基对甲苯亚砜

Also known as: (S)-Methyl 4-tolyl sulfoxide, (S)-Methyl p-methylphenyl sulfoxide, (S)-p-Methylphenyl methyl sulfoxide, (S)-p-Tolyl methyl sulfoxide, 1-Methyl-4-[(S)-methylsulfinyl]benzene, MFCD00151503, S-(4-Methylphenyl) methyl sulfoxide

(S)-(-)-Methyl p-tolyl sulfoxide (CAS 5056-07-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H10OS and a molecular weight of 154.22900 g/mol. It is also known as (S)-Methyl 4-tolyl sulfoxide, (S)-Methyl p-methylphenyl sulfoxide and (S)-p-Methylphenyl methyl sulfoxide. Key properties include a melting point of 75-77ºC(lit.), a boiling point of 282.403ºC at 760 mmHg, a density of 1.16g/cm3 and a flash point of 124.593ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5056-07-5
Jingsj CID
J-25778-9
Molecular Formula
C8H10OS
Chinese Name
(S)-(-)-甲基对甲苯亚砜
Molecular Weight
154.22900 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point75-77ºC(lit.)
Boiling Point282.403ºC at 760 mmHg
Density1.16g/cm3
Flash Point124.593ºC

Frequently Asked Questions

What is the CAS number of (S)-(-)-Methyl p-tolyl sulfoxide?

The CAS number of (S)-(-)-Methyl p-tolyl sulfoxide is 5056-07-5.

What are the molecular formula and molecular weight of (S)-(-)-Methyl p-tolyl sulfoxide?

(S)-(-)-Methyl p-tolyl sulfoxide has molecular formula C8H10OS and molecular weight 154.22900 g/mol.

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

Last updated:

How to cite: Jingsj. "(S)-(-)-Methyl p-tolyl sulfoxide (CAS 5056-07-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25778-9 (accessed 2026-10-23).

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