5-Ethyl-1,3-thiazole-4-carboxylic acid

5-乙基-4-噻唑羧酸

Also known as: 4-Thiazolecarboxylic acid, 5-ethyl-, 4-Thiazolecarboxylicacid,5-ethyl-, 4-thiazolecarboxylic acid,5-ethyl, 5-ETHYLTHIAZOLE-4-CARBOXYLIC ACID, 5-Ethyl-1,3-thiazole-4-carboxylic acid, 5-ethylthiazole-4-carboxylic acid

5-Ethyl-1,3-thiazole-4-carboxylic acid (CAS 864437-40-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7NO2S and a molecular weight of 157.190 g/mol. It is also known as 4-Thiazolecarboxylic acid, 5-ethyl-, 4-Thiazolecarboxylicacid,5-ethyl- and 4-thiazolecarboxylic acid,5-ethyl. Key properties include a boiling point of 301.2±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 135.9±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
864437-40-1
Jingsj CID
J-1414164-1
Molecular Formula
C6H7NO2S
Chinese Name
5-乙基-4-噻唑羧酸
Molecular Weight
157.190 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point301.2±22.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point135.9±22.3 °C

Frequently Asked Questions

What is the CAS number of 5-Ethyl-1,3-thiazole-4-carboxylic acid?

The CAS number of 5-Ethyl-1,3-thiazole-4-carboxylic acid is 864437-40-1.

What are the molecular formula and molecular weight of 5-Ethyl-1,3-thiazole-4-carboxylic acid?

5-Ethyl-1,3-thiazole-4-carboxylic acid has molecular formula C6H7NO2S and molecular weight 157.190 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Ethyl-1,3-thiazole-4-carboxylic acid (CAS 864437-40-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1414164-1 (accessed 2026-10-26).

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