4-Methyl-1,3-dithiolan-2-one
4-甲基-1,3-二硫戊环-2-酮
Also known as: Dithiocarbonic Acid Cyclic S,S-Propylene Ester, 1,3-Dithiolan-2-one, 4-Methyl-
4-Methyl-1,3-dithiolan-2-one (CAS 21548-49-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H6OS2 and a molecular weight of 134.22000 g/mol. It is also known as Dithiocarbonic Acid Cyclic S,S-Propylene Ester and 1,3-Dithiolan-2-one, 4-Methyl-. Key properties include a boiling point of 191.8ºC at 760mmHg, a density of 1.288g/cm3 and a flash point of 76.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21548-49-2
- Jingsj CID
- J-1477674-6
- Molecular Formula
- C4H6OS2
- Chinese Name
- 4-甲基-1,3-二硫戊环-2-酮
- Molecular Weight
- 134.22000 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 191.8ºC at 760mmHg |
|---|---|
| Density | 1.288g/cm3 |
| Flash Point | 76.1ºC |
Frequently Asked Questions
What is the CAS number of 4-Methyl-1,3-dithiolan-2-one?
The CAS number of 4-Methyl-1,3-dithiolan-2-one is 21548-49-2.
What are the molecular formula and molecular weight of 4-Methyl-1,3-dithiolan-2-one?
4-Methyl-1,3-dithiolan-2-one has molecular formula C4H6OS2 and molecular weight 134.22000 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Methyl-1,3-dithiolan-2-one (CAS 21548-49-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1477674-6 (accessed 2026-10-26).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.