4-Ethyl-5-methylthiophene-3-carboxylic acid

4-乙基-5-甲基噻吩-3-羧酸

Also known as: 4-Ethyl-5-methyl-3-thiophenecarboxylic acid, 4-Ethyl-5-methylthiophene-3-carboxylic acid

4-Ethyl-5-methylthiophene-3-carboxylic acid (CAS 884497-34-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H10O2S and a molecular weight of 170.22900 g/mol. It is also known as 4-Ethyl-5-methyl-3-thiophenecarboxylic acid. Key properties include a boiling point of 282.1ºC at 760 mmHg, a density of 1.211g/cm3 and a flash point of 124.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
884497-34-1
Jingsj CID
J-967700-9
Molecular Formula
C8H10O2S
Chinese Name
4-乙基-5-甲基噻吩-3-羧酸
Molecular Weight
170.22900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point282.1ºC at 760 mmHg
Density1.211g/cm3
Flash Point124.4ºC

Frequently Asked Questions

What is the CAS number of 4-Ethyl-5-methylthiophene-3-carboxylic acid?

The CAS number of 4-Ethyl-5-methylthiophene-3-carboxylic acid is 884497-34-1.

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

4-Ethyl-5-methylthiophene-3-carboxylic acid has molecular formula C8H10O2S and molecular weight 170.22900 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Ethyl-5-methylthiophene-3-carboxylic acid (CAS 884497-34-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-967700-9 (accessed 2026-10-23).

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