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3-Chloro-4-methylthiophene-2-carboxylic acid

3-氯-4-甲基噻吩-2-羧酸

Also known as: 2-Thiophenecarboxylic acid, 3-chloro-4-methyl-, 3-Chloro-4-methyl-2-thiophenecarboxylic acid, 3-chloro-4-methyl-thiophene-2-carboxylic acid

3-Chloro-4-methylthiophene-2-carboxylic acid (CAS 229342-86-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5ClO2S and a molecular weight of 176.62100 g/mol. It is also known as 2-Thiophenecarboxylic acid, 3-chloro-4-methyl-, 3-Chloro-4-methyl-2-thiophenecarboxylic acid and 3-chloro-4-methyl-thiophene-2-carboxylic acid. Key properties include a melting point of 223-224ºC, a boiling point of 298.7ºC at 760 mmHg, a density of 1.475g/cm3 and a flash point of 134.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
229342-86-3
Jingsj CID
J-998740-7
Molecular Formula
C6H5ClO2S
Chinese Name
3-氯-4-甲基噻吩-2-羧酸
Molecular Weight
176.62100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point223-224ºC
Boiling Point298.7ºC at 760 mmHg
Density1.475g/cm3
Flash Point134.4ºC

Frequently Asked Questions

What is the CAS number of 3-Chloro-4-methylthiophene-2-carboxylic acid?

The CAS number of 3-Chloro-4-methylthiophene-2-carboxylic acid is 229342-86-3.

What are the molecular formula and molecular weight of 3-Chloro-4-methylthiophene-2-carboxylic acid?

3-Chloro-4-methylthiophene-2-carboxylic acid has molecular formula C6H5ClO2S and molecular weight 176.62100 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-methylthiophene-2-carboxylic acid (CAS 229342-86-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-998740-7 (accessed 2026-10-22).

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