methyl p-tolyl sulfoxide

Also known as: Methyl 4-methylphenyl sulfoxide, 1-Methyl-4-(methylsulfinyl)benzene, 4-Methylphenyl methyl sulfoxide, MFCD00075175

methyl p-tolyl sulfoxide (CAS 934-72-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H10OS and a molecular weight of 154.229 g/mol. Key properties include a melting point of 44-46ºC(lit.), a boiling point of 282.4±19.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 124.6±21.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 934-72-5
Jingsj CID: J-1990167-8
Molecular Formula: C₈H₁₀OS
Molecular Weight: 154.229 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	44-46ºC(lit.)
Boiling Point	282.4±19.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	124.6±21.5 °C
Exact Mass	154.045242
PSA	36.28000
LogP	1.01
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.590

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of methyl p-tolyl sulfoxide?

The CAS number of methyl p-tolyl sulfoxide is 934-72-5.

What are the molecular formula and molecular weight of methyl p-tolyl sulfoxide?

methyl p-tolyl sulfoxide has molecular formula C8H10OS and molecular weight 154.229 g/mol.

What are the upstream and downstream products of methyl p-tolyl sulfoxide?

For methyl p-tolyl sulfoxide, Upstream Products: Methyl p-tolyl sulfide, iodomethane, p-Toluenethiol; Downstream Products: Methyl p-tolyl sulfide, Chloromethyl p-tolyl sulfide, pentane.

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

Last updated: 8/21/2026

How to cite: Jingsj. "methyl p-tolyl sulfoxide (CAS 934-72-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990167-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.