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4-methyl-1,3,2-dioxathiolane 2-oxide

4-甲基亚硫酸乙烯酯

Also known as: 1,2-Propanediol sulfite, 1,2-Propylene sulfite, Propylene sulfite, 4-methyl-2-oxo-1,3,2-dioxathiolane, 1,2-Propanediol cyclic sulfite, Cyclic propylene sulfite, NSC 44145, NSC 525703, 4-methyl-[1,3,2]dioxathiolane 2-oxide

4-methyl-1,3,2-dioxathiolane 2-oxide (CAS 1469-73-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H6O3S and a molecular weight of 122.14300 g/mol. It is also known as 1,2-Propanediol sulfite, 1,2-Propylene sulfite and Propylene sulfite. Key properties include a boiling point of 175ºC at 760 mmHg, a density of 1.46 g/cm3 and a flash point of 56.6ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1469-73-4
Jingsj CID
J-1519916-2
Molecular Formula
C3H6O3S
Chinese Name
4-甲基亚硫酸乙烯酯
Molecular Weight
122.14300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point175ºC at 760 mmHg
Density1.46 g/cm3
Flash Point56.6ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-methyl-1,3,2-dioxathiolane 2-oxide?

The CAS number of 4-methyl-1,3,2-dioxathiolane 2-oxide is 1469-73-4.

What are the molecular formula and molecular weight of 4-methyl-1,3,2-dioxathiolane 2-oxide?

4-methyl-1,3,2-dioxathiolane 2-oxide has molecular formula C3H6O3S and molecular weight 122.14300 g/mol.

Is 4-methyl-1,3,2-dioxathiolane 2-oxide hazardous?

4-methyl-1,3,2-dioxathiolane 2-oxide 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. "4-methyl-1,3,2-dioxathiolane 2-oxide (CAS 1469-73-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519916-2 (accessed 2026-10-24).

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