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5-(Methylsulfonyl)thiophene-2-carboxylic acid

Also known as: (5-METHYLSULFONYL)THIOPHENE, 2-Methylsulfonyl-5-thiophenecarboxylic acid, 5-(METHANESULFONYL)THIOPHENE-2-CARBOXYLIC ACID, 5-(METHYLSULFONYL)THIOPHENE-2-CARBOXYLIC ACID, 5-(Methanesulfonyl)-2-thiophenecarboxylic acid, 5-(Methylsulfonyl)thiophene-2-carboxylic acid ,97%, 5-(Methylsulphonyl)-2-thenoic acid, 2-Carboxy-5-(methylsulphonyl)thiophene, 5-(methylsulphonyl)thiophene-2-carboxylic acid, 5-methylsulfonylthiophene-2-carboxylic acid

5-(Methylsulfonyl)thiophene-2-carboxylic acid (CAS 60166-86-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6O4S2 and a molecular weight of 206.23900 g/mol. Key properties include a melting point of 204ºC, a boiling point of 485.6ºC at 760 mmHg, a density of 1.548g/cm3 and a flash point of 247.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
60166-86-1
Jingsj CID
J-1412115-4
Molecular Formula
C6H6O4S2
Molecular Weight
206.23900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point204ºC
Boiling Point485.6ºC at 760 mmHg
Density1.548g/cm3
Flash Point247.5ºC
Exact Mass205.97100
PSA108.06000
LogP1.93060
Refractive Index1.584

Frequently Asked Questions

What is the CAS number of 5-(Methylsulfonyl)thiophene-2-carboxylic acid?

The CAS number of 5-(Methylsulfonyl)thiophene-2-carboxylic acid is 60166-86-1.

What are the molecular formula and molecular weight of 5-(Methylsulfonyl)thiophene-2-carboxylic acid?

5-(Methylsulfonyl)thiophene-2-carboxylic acid has molecular formula C6H6O4S2 and molecular weight 206.23900 g/mol.

What are the upstream and downstream products of 5-(Methylsulfonyl)thiophene-2-carboxylic acid?

For 5-(Methylsulfonyl)thiophene-2-carboxylic acid, Upstream Products: 5-(methylthio)thiophene-2-carboxylic acid, 2-(Methylthio)thiophene, 5-(Methylthio)thiophene-2-carbaldehyde.

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

Last updated:

How to cite: Jingsj. "5-(Methylsulfonyl)thiophene-2-carboxylic acid (CAS 60166-86-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1412115-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.