3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride

3-氯-4-甲磺酰基噻吩-2-碳酰氯

Also known as: 3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride, 3-chloro-4-methylsulfonylthiophene-2-carbonyl chloride, 3-chloro-4-(methylsulphonyl)thiophene-2-carbonyl chloride, 3-chloro-4-methylsulfonyl-2-thiophenecarbonyl chloride, 4-chloro-5-(chlorocarbonyl)thien-3-yl methyl sulphone, 3-chloro-2-(chlorocarbonyl)-4-(methylsulphonyl)thiophene, Buttpark 36\04-41

3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride (CAS 175201-87-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4Cl2O3S2 and a molecular weight of 259.13000 g/mol. It is also known as 3-chloro-4-methylsulfonylthiophene-2-carbonyl chloride, 3-chloro-4-(methylsulphonyl)thiophene-2-carbonyl chloride and 3-chloro-4-methylsulfonyl-2-thiophenecarbonyl chloride. Key properties include a melting point of 181-184ºC, a boiling point of 444.2ºC at 760mmHg, a density of 1.629g/cm3 and a flash point of 222.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
175201-87-3
Jingsj CID
J-994431-0
Molecular Formula
C6H4Cl2O3S2
Chinese Name
3-氯-4-甲磺酰基噻吩-2-碳酰氯
Molecular Weight
259.13000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point181-184ºC
Boiling Point444.2ºC at 760mmHg
Density1.629g/cm3
Flash Point222.4ºC

Frequently Asked Questions

What is the CAS number of 3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride?

The CAS number of 3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride is 175201-87-3.

What are the molecular formula and molecular weight of 3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride?

3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride has molecular formula C6H4Cl2O3S2 and molecular weight 259.13000 g/mol.

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

Last updated:

How to cite: Jingsj. "3-chloro-4-(methylsulfonyl)thiophene-2-carbonyl chloride (CAS 175201-87-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-994431-0 (accessed 2026-10-24).

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