Dimethyl sulfite

亚硫酸二甲酯

Also known as: Sulfurous acid, dimethyl ester, Methyl sulfite, Dimethyl sulphite, Dimethoxy sulfoxide, dimethoxysulfoxide, methoxy sulfoxide, NSC 41902, MFCD00008415, EINECS 210-481-0, (CH3O)2SO, Dimethyl ester of sulfurous acid

Dimethyl sulfite (CAS 616-42-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C2H6O3S and a molecular weight of 110.132 g/mol. It is also known as Sulfurous acid, dimethyl ester, Methyl sulfite and Dimethyl sulphite. Key properties include a boiling point of 126.0±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 41.1±0.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
616-42-2
Jingsj CID
J-1990153-8
Molecular Formula
C2H6O3S
Chinese Name
亚硫酸二甲酯
Molecular Weight
110.132 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point126.0±0.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point41.1±0.0 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Dimethyl sulfite?

The CAS number of Dimethyl sulfite is 616-42-2.

What are the molecular formula and molecular weight of Dimethyl sulfite?

Dimethyl sulfite has molecular formula C2H6O3S and molecular weight 110.132 g/mol.

Is Dimethyl sulfite hazardous?

Dimethyl sulfite has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Dimethyl sulfite (CAS 616-42-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990153-8 (accessed 2026-10-22).

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