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5-(Trifluoromethyl)thiophene-2-carboxylic acid

5-(三氟甲基)噻吩-2-羧酸

Also known as: 2-Thiophenecarboxylic acid, 5-(trifluoromethyl)-, 5-(Trifluoromethyl)-2-thiophenecarboxylic acid, 5-(trifluoromethyl)thiophene-2-carboxylic acid

5-(Trifluoromethyl)thiophene-2-carboxylic acid (CAS 128009-32-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3F3O2S and a molecular weight of 196.147 g/mol. It is also known as 2-Thiophenecarboxylic acid, 5-(trifluoromethyl)-, 5-(Trifluoromethyl)-2-thiophenecarboxylic acid and 5-(trifluoromethyl)thiophene-2-carboxylic acid. Key properties include a boiling point of 258.6±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 110.2±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128009-32-5
Jingsj CID
J-1495621-8
Molecular Formula
C6H3F3O2S
Chinese Name
5-(三氟甲基)噻吩-2-羧酸
Molecular Weight
196.147 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point258.6±40.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point110.2±27.3 °C

Frequently Asked Questions

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

The CAS number of 5-(Trifluoromethyl)thiophene-2-carboxylic acid is 128009-32-5.

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

5-(Trifluoromethyl)thiophene-2-carboxylic acid has molecular formula C6H3F3O2S and molecular weight 196.147 g/mol.

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

Last updated:

How to cite: Jingsj. "5-(Trifluoromethyl)thiophene-2-carboxylic acid (CAS 128009-32-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495621-8 (accessed 2026-10-26).

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