Prop-1-ene-1,3-sultone

丙烯基-1,3-磺酸内酯

Also known as: 1-Propene 1,3-Sultone, 5H-1,2-Oxathiole 2,2-dioxide, 1,3-Propene sultone, prop-1-ene-1,3-sultone, 1-propene-1,3-sultone, 5H-oxathiole 2,2-dioxide, PST

Prop-1-ene-1,3-sultone (CAS 21806-61-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H4O3S and a molecular weight of 120.127 g/mol. It is also known as 1-Propene 1,3-Sultone, 5H-1,2-Oxathiole 2,2-dioxide and 1,3-Propene sultone. Key properties include a melting point of 82-83ºC, a boiling point of 256.6±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 109.0±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21806-61-1
Jingsj CID
J-1088259-3
Molecular Formula
C3H4O3S
Chinese Name
丙烯基-1,3-磺酸内酯
Molecular Weight
120.127 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point82-83ºC
Boiling Point256.6±23.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point109.0±22.6 °C

Frequently Asked Questions

What is the CAS number of Prop-1-ene-1,3-sultone?

The CAS number of Prop-1-ene-1,3-sultone is 21806-61-1.

What are the molecular formula and molecular weight of Prop-1-ene-1,3-sultone?

Prop-1-ene-1,3-sultone has molecular formula C3H4O3S and molecular weight 120.127 g/mol.

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

Last updated:

How to cite: Jingsj. "Prop-1-ene-1,3-sultone (CAS 21806-61-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1088259-3 (accessed 2026-10-22).

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