tert-butyl methyl sulfoxide

叔丁基甲砜

Also known as: (±)-tert-butyl methyl sulfoxide, 2,2-dimethyl-3-thiabutane-3-one, 2-methyl-2-(methylsulfinyl)propane, 2-methyl-2-methylsulfinylpropane, MFCD00041528, methyl tert-butyl sulphoxide, methyltert-butylsulfoxide, propane, 2-methyl-2-(methylsulfinyl)-, propane,2-methyl-2-(methylsulfinyl), t-butyl methyl sulfoxide, tert-butyl methyl sulphoxide

tert-butyl methyl sulfoxide (CAS 14094-11-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H12OS and a molecular weight of 120.21300 g/mol. It is also known as (±)-tert-butyl methyl sulfoxide, 2,2-dimethyl-3-thiabutane-3-one and 2-methyl-2-(methylsulfinyl)propane. Key properties include a boiling point of 209.9ºC at 760mmHg, a density of 0.996g/cm3 and a flash point of 80.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 14094-11-2
Jingsj CID: J-39406-2
Molecular Formula: C₅H₁₂OS
Chinese Name: 叔丁基甲砜
Molecular Weight: 120.21300 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	209.9ºC at 760mmHg
Density	0.996g/cm3
Flash Point	80.7ºC
Exact Mass	120.06100
PSA	36.28000
LogP	2.02910
Vapor Pressure	0.286mmHg at 25°C
Refractive Index	1.473

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 tert-butyl methyl sulfoxide?

The CAS number of tert-butyl methyl sulfoxide is 14094-11-2.

What are the molecular formula and molecular weight of tert-butyl methyl sulfoxide?

tert-butyl methyl sulfoxide has molecular formula C5H12OS and molecular weight 120.21300 g/mol.

What are the upstream and downstream products of tert-butyl methyl sulfoxide?

For tert-butyl methyl sulfoxide, Upstream Products: tert-Butyl Methyl Sulfide, tert-Butylmagnesium chloride; Downstream Products: Methyl methanethiosulfonate, tert-Butyl Methyl Sulfide.

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

Last updated: 8/21/2026

How to cite: Jingsj. "tert-butyl methyl sulfoxide (CAS 14094-11-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39406-2 (accessed 2026-10-28).

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