4-Cyanothiophene-2-carboxylic acid

4-氰基-2-噻吩甲酸

Also known as: 4-Cyano-2-thiophenecarboxylic acid, 2-Thiophenecarboxylic acid, 4-cyano-, 2-Carboxy-4-cyanothiophene, 4-Cyano-2-thenoic acid, 5-Carboxythiophene-3-carbonitrile, 2-Thiophenecarboxylicacid,4-cyano-(9CI)

4-Cyanothiophene-2-carboxylic acid (CAS 406719-77-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3NO2S and a molecular weight of 153.15900 g/mol. It is also known as 4-Cyano-2-thiophenecarboxylic acid, 2-Thiophenecarboxylic acid, 4-cyano- and 2-Carboxy-4-cyanothiophene. Key properties include a boiling point of 348.081ºC at 760 mmHg, a density of 1.517g/cm3 and a flash point of 164.314ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
406719-77-5
Jingsj CID
J-1020612-2
Molecular Formula
C6H3NO2S
Chinese Name
4-氰基-2-噻吩甲酸
Molecular Weight
153.15900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point348.081ºC at 760 mmHg
Density1.517g/cm3
Flash Point164.314ºC

Frequently Asked Questions

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

The CAS number of 4-Cyanothiophene-2-carboxylic acid is 406719-77-5.

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

4-Cyanothiophene-2-carboxylic acid has molecular formula C6H3NO2S and molecular weight 153.15900 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Cyanothiophene-2-carboxylic acid (CAS 406719-77-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1020612-2 (accessed 2026-10-24).

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