2,3-dimethyl-1-benzofuran-5-carboxylic acid

2,3-二甲基苯并呋喃-5-羧酸

Also known as: 2,3-DIMETHYLBENZOFURAN-5-CARBOXYLIC ACID, 2,3-Dimethyl-5-benzofurancarboxylic acid, 2,3-Dimethyl-5-carboxybenzofuran, 5-Benzofurancarboxylic acid, 2,3-dimethyl-, 2,3-Dimethyl-benzofuran-5-carboxylic acid

2,3-dimethyl-1-benzofuran-5-carboxylic acid (CAS 3781-93-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H10O3 and a molecular weight of 190.19500 g/mol. It is also known as 2,3-DIMETHYLBENZOFURAN-5-CARBOXYLIC ACID, 2,3-Dimethyl-5-benzofurancarboxylic acid and 2,3-Dimethyl-5-carboxybenzofuran. Key properties include a boiling point of 368.7ºC at 760mmHg, a density of 1.256g/cm3 and a flash point of 176.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3781-93-9
Jingsj CID
J-1002860-7
Molecular Formula
C11H10O3
Chinese Name
2,3-二甲基苯并呋喃-5-羧酸
Molecular Weight
190.19500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point368.7ºC at 760mmHg
Density1.256g/cm3
Flash Point176.8ºC

Frequently Asked Questions

What is the CAS number of 2,3-dimethyl-1-benzofuran-5-carboxylic acid?

The CAS number of 2,3-dimethyl-1-benzofuran-5-carboxylic acid is 3781-93-9.

What are the molecular formula and molecular weight of 2,3-dimethyl-1-benzofuran-5-carboxylic acid?

2,3-dimethyl-1-benzofuran-5-carboxylic acid has molecular formula C11H10O3 and molecular weight 190.19500 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3-dimethyl-1-benzofuran-5-carboxylic acid (CAS 3781-93-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1002860-7 (accessed 2026-10-24).

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