3-Acetyl-2-(methylaminosulfonyl)thiophene

3-乙酰-2-(甲氨基磺酰)噻吩

Also known as: 3-ACETYL-2-THIOPHENE-N-METHYLSULFONAMIDE, 3-Acetyl-N-methylthiophene-2-sulfonamide, 3-acetyl-N-methyl-2-thiophenesulfonamide, Acetylmethylaminosulfonylthiophene, 3-Acetyl-2-(methylminosulfonyl)thiophene

3-Acetyl-2-(methylaminosulfonyl)thiophene (CAS 138891-01-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H9NO3S2 and a molecular weight of 219.28100 g/mol. It is also known as 3-ACETYL-2-THIOPHENE-N-METHYLSULFONAMIDE, 3-Acetyl-N-methylthiophene-2-sulfonamide and 3-acetyl-N-methyl-2-thiophenesulfonamide. Key properties include a melting point of 105ºC, a boiling point of 375.857ºC at 760 mmHg, a density of 1.362g/cm3 and a flash point of 181.112ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
138891-01-7
Jingsj CID
J-34122-2
Molecular Formula
C7H9NO3S2
Chinese Name
3-乙酰-2-(甲氨基磺酰)噻吩
Molecular Weight
219.28100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point105ºC
Boiling Point375.857ºC at 760 mmHg
Density1.362g/cm3
Flash Point181.112ºC

Frequently Asked Questions

What is the CAS number of 3-Acetyl-2-(methylaminosulfonyl)thiophene?

The CAS number of 3-Acetyl-2-(methylaminosulfonyl)thiophene is 138891-01-7.

What are the molecular formula and molecular weight of 3-Acetyl-2-(methylaminosulfonyl)thiophene?

3-Acetyl-2-(methylaminosulfonyl)thiophene has molecular formula C7H9NO3S2 and molecular weight 219.28100 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Acetyl-2-(methylaminosulfonyl)thiophene (CAS 138891-01-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34122-2 (accessed 2026-10-23).

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