4-Methyl-2,3-dihydrothiophene 1,1-dioxide

4-甲基-2,3-二氢噻吩 1,1-二氧化物

Also known as: 4,5-Dihydro-3-methylthiophene 1,1-dioxide, 3-Methyl-2-sulfolene, 3-Methyl-4,5-dihydrothiophene 1,1-dioxide, 3-Methyl-sulfol-2-en, 4,5-Dihydro-3-methylthiophene 1,1-dioxide, 4-Methyl-2,3-dihydrothiophene 1,1-dioxide

4-Methyl-2,3-dihydrothiophene 1,1-dioxide (CAS 872-94-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8O2S and a molecular weight of 132.18100 g/mol. It is also known as 4,5-Dihydro-3-methylthiophene 1,1-dioxide, 3-Methyl-2-sulfolene and 3-Methyl-4,5-dihydrothiophene 1,1-dioxide. Key properties include a boiling point of 298.4ºC at 760mmHg, a density of 1.24g/cm3 and a flash point of 178.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
872-94-6
Jingsj CID
J-1484757-6
Molecular Formula
C5H8O2S
Chinese Name
4-甲基-2,3-二氢噻吩 1,1-二氧化物
Molecular Weight
132.18100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point298.4ºC at 760mmHg
Density1.24g/cm3
Flash Point178.4ºC

Frequently Asked Questions

What is the CAS number of 4-Methyl-2,3-dihydrothiophene 1,1-dioxide?

The CAS number of 4-Methyl-2,3-dihydrothiophene 1,1-dioxide is 872-94-6.

What are the molecular formula and molecular weight of 4-Methyl-2,3-dihydrothiophene 1,1-dioxide?

4-Methyl-2,3-dihydrothiophene 1,1-dioxide has molecular formula C5H8O2S and molecular weight 132.18100 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-2,3-dihydrothiophene 1,1-dioxide (CAS 872-94-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1484757-6 (accessed 2026-10-25).

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