5-Fluoro-2-thiophenecarboxylic acid

5-氟噻吩-2-甲酸

Also known as: 2-Thiophenecarboxylic acid, 5-fluoro-, 5-Fluoro-thiophene-2-carboxylic acid, 5-Fluorothiophen-2-carboxylic acid, 5-Fluorothiophen-2-ylcarboxylic acid, 5-fluorothiophene-2-carboxylic acid, 5-fluoro-2-thiophenecarboxylic acid

5-Fluoro-2-thiophenecarboxylic acid (CAS 4377-58-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3FO2S and a molecular weight of 146.139 g/mol. It is also known as 2-Thiophenecarboxylic acid, 5-fluoro-, 5-Fluoro-thiophene-2-carboxylic acid and 5-Fluorothiophen-2-carboxylic acid. Key properties include a boiling point of 271.2±20.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 117.8±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4377-58-6
Jingsj CID
J-1402852-2
Molecular Formula
C5H3FO2S
Chinese Name
5-氟噻吩-2-甲酸
Molecular Weight
146.139 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point271.2±20.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point117.8±21.8 °C

Frequently Asked Questions

What is the CAS number of 5-Fluoro-2-thiophenecarboxylic acid?

The CAS number of 5-Fluoro-2-thiophenecarboxylic acid is 4377-58-6.

What are the molecular formula and molecular weight of 5-Fluoro-2-thiophenecarboxylic acid?

5-Fluoro-2-thiophenecarboxylic acid has molecular formula C5H3FO2S and molecular weight 146.139 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Fluoro-2-thiophenecarboxylic acid (CAS 4377-58-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1402852-2 (accessed 2026-10-22).

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