5-methylfuran-3-carboxylic acid

5-甲基呋喃-3-羧酸

Also known as: 3-furancarboxylic acid, 5-methyl-, 5-methyl-3-furoic acid, 2-methyl-4-furoic acid, 5-methyl-3-furancarboxylic acid, 5-methyl-3-furylcarboxylic acid, 5-methyl-furan-3-carboxylic acid, QC-9860

5-methylfuran-3-carboxylic acid (CAS 21984-93-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6O3 and a molecular weight of 126.11000 g/mol. It is also known as 3-furancarboxylic acid, 5-methyl-, 5-methyl-3-furoic acid and 2-methyl-4-furoic acid. Key properties include a melting point of 119℃, a boiling point of 234.8ºC at 760 mmHg, a density of 1.248g/cm3 and a flash point of 95.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21984-93-0
Jingsj CID
J-1521279-7
Molecular Formula
C6H6O3
Chinese Name
5-甲基呋喃-3-羧酸
Molecular Weight
126.11000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point119℃
Boiling Point234.8ºC at 760 mmHg
Density1.248g/cm3
Flash Point95.8ºC

Frequently Asked Questions

What is the CAS number of 5-methylfuran-3-carboxylic acid?

The CAS number of 5-methylfuran-3-carboxylic acid is 21984-93-0.

What are the molecular formula and molecular weight of 5-methylfuran-3-carboxylic acid?

5-methylfuran-3-carboxylic acid has molecular formula C6H6O3 and molecular weight 126.11000 g/mol.

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

Last updated:

How to cite: Jingsj. "5-methylfuran-3-carboxylic acid (CAS 21984-93-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1521279-7 (accessed 2026-10-22).

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