4-Phenoxythiophene-2-carboxylic acid

4-苯氧基-2-噻吩羧酸

Also known as: 2-Thiophenecarboxylic acid, 4-phenoxy-, 4-Phenoxy-2-thiophenecarboxylic acid, 2-Thiophenecarboxylicacid,4-phenoxy

4-Phenoxythiophene-2-carboxylic acid (CAS 81028-69-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8O3S and a molecular weight of 220.24400 g/mol. It is also known as 2-Thiophenecarboxylic acid, 4-phenoxy-, 4-Phenoxy-2-thiophenecarboxylic acid and 2-Thiophenecarboxylicacid,4-phenoxy. Key properties include a boiling point of 384.9ºC at 760 mmHg, a density of 1.359g/cm3 and a flash point of 186.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81028-69-5
Jingsj CID
J-1084541-3
Molecular Formula
C11H8O3S
Chinese Name
4-苯氧基-2-噻吩羧酸
Molecular Weight
220.24400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point384.9ºC at 760 mmHg
Density1.359g/cm3
Flash Point186.6ºC

Frequently Asked Questions

What is the CAS number of 4-Phenoxythiophene-2-carboxylic acid?

The CAS number of 4-Phenoxythiophene-2-carboxylic acid is 81028-69-5.

What are the molecular formula and molecular weight of 4-Phenoxythiophene-2-carboxylic acid?

4-Phenoxythiophene-2-carboxylic acid has molecular formula C11H8O3S and molecular weight 220.24400 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Phenoxythiophene-2-carboxylic acid (CAS 81028-69-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084541-3 (accessed 2026-10-24).

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