2,2-Dimethylthiirane

2,2-二甲基环硫丙烷

Also known as: Isobutylene Sulfide, 2-Methylpropylene Sulfide, 2,2-Dimethylethylene Sulfide, 2,2-Dimethylthiacyclopropane, Thiirane, 2,2-dimethyl-

2,2-Dimethylthiirane (CAS 3772-13-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H8S and a molecular weight of 88.171 g/mol. It is also known as Isobutylene Sulfide, 2-Methylpropylene Sulfide and 2,2-Dimethylethylene Sulfide. Key properties include a boiling point of 82.3±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of -3.1±15.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3772-13-2
Jingsj CID
J-25044-5
Molecular Formula
C4H8S
Chinese Name
2,2-二甲基环硫丙烷
Molecular Weight
88.171 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point82.3±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point-3.1±15.4 °C

Frequently Asked Questions

What is the CAS number of 2,2-Dimethylthiirane?

The CAS number of 2,2-Dimethylthiirane is 3772-13-2.

What are the molecular formula and molecular weight of 2,2-Dimethylthiirane?

2,2-Dimethylthiirane has molecular formula C4H8S and molecular weight 88.171 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2-Dimethylthiirane (CAS 3772-13-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25044-5 (accessed 2026-10-22).

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