Dimethyl sulfite
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. 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. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 616-42-2
- Jingsj CID
- J-1990153-2
- Molecular Formula
- C2H6O3S
- Molecular Weight
- 110.132 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 126.0±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 41.1±0.0 °C |
| Exact Mass | 110.003761 |
| PSA | 54.74000 |
| LogP | -0.43 |
| Vapor Pressure | 14.4±0.2 mmHg at 25°C |
| Refractive Index | 1.477 |
| Additional Property | soluble |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 29209085 |
|---|
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 and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Dimethyl sulfite?
For Dimethyl sulfite, Upstream Products: Methanol, dimethoxymethane, Methyl nitrite; Downstream Products: 2-Nitroanisole, Methyl fluorosulfonate, 1,2-Dimethoxybenzene.
Data compiled from public chemical databases such as PubChem 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-1990153-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.