3,4,5-Trichlorothiophene-2-carboxylic acid

3,4,5-三氯噻吩-2-羧酸

Also known as: 2-Carboxy-3,4,5-trichlorothiophene, 2-Thiophenecarboxylic acid, 3,4,5-trichloro-, 3,4,5-Trichloro-2-thiophenecarboxylic acid, 3,4,5-Trichlorothiophene-2-carboxylic acid, MFCD00092429

3,4,5-Trichlorothiophene-2-carboxylic acid (CAS 26020-48-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5HCl3O2S and a molecular weight of 231.48400 g/mol. It is also known as 2-Carboxy-3,4,5-trichlorothiophene, 2-Thiophenecarboxylic acid, 3,4,5-trichloro- and 3,4,5-Trichloro-2-thiophenecarboxylic acid. Key properties include a melting point of 226-228ºC, a boiling point of 335.6ºC at 760 mmHg, a density of 1.818g/cm3 and a flash point of 156.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
26020-48-4
Jingsj CID
J-40829-3
Molecular Formula
C5HCl3O2S
Chinese Name
3,4,5-三氯噻吩-2-羧酸
Molecular Weight
231.48400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point226-228ºC
Boiling Point335.6ºC at 760 mmHg
Density1.818g/cm3
Flash Point156.7ºC

Frequently Asked Questions

What is the CAS number of 3,4,5-Trichlorothiophene-2-carboxylic acid?

The CAS number of 3,4,5-Trichlorothiophene-2-carboxylic acid is 26020-48-4.

What are the molecular formula and molecular weight of 3,4,5-Trichlorothiophene-2-carboxylic acid?

3,4,5-Trichlorothiophene-2-carboxylic acid has molecular formula C5HCl3O2S and molecular weight 231.48400 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4,5-Trichlorothiophene-2-carboxylic acid (CAS 26020-48-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40829-3 (accessed 2026-10-22).

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