Diethyl Sulfite
亚硫酸二乙酯
Also known as: Diethyl sulfite, Sulfurous acid diethyl ester, Ethyl sulfite, Diethyl sulphite, (C2H5O)2SO, NSC 8838, BRN 1701906
Diethyl Sulfite (CAS 623-81-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H10O3S and a molecular weight of 138.185 g/mol. It is also known as Diethyl sulfite, Sulfurous acid diethyl ester and Ethyl sulfite. Key properties include a boiling point of 156.6±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 53.9±0.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 623-81-4
- Jingsj CID
- J-27502-6
- Molecular Formula
- C4H10O3S
- Chinese Name
- 亚硫酸二乙酯
- Molecular Weight
- 138.185 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 156.6±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 53.9±0.0 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Diethyl Sulfite?
The CAS number of Diethyl Sulfite is 623-81-4.
What are the molecular formula and molecular weight of Diethyl Sulfite?
Diethyl Sulfite has molecular formula C4H10O3S and molecular weight 138.185 g/mol.
Is Diethyl Sulfite hazardous?
Diethyl 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. "Diethyl Sulfite (CAS 623-81-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27502-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.