3,4-difluoro-2-hydroxybenzoic acid

3,4-二氟水杨酸

Also known as: 3,4-Difluorosalicylic acid, Benzoic acid, 3,4-difluoro-2-hydroxy-, MFCD03428564, PC7835

3,4-difluoro-2-hydroxybenzoic acid (CAS 189283-51-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4F2O3 and a molecular weight of 174.102 g/mol. It is also known as 3,4-Difluorosalicylic acid, Benzoic acid, 3,4-difluoro-2-hydroxy- and MFCD03428564. Key properties include a melting point of 177-179ºC, a boiling point of 281.5±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 124.1±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
189283-51-0
Jingsj CID
J-35693-6
Molecular Formula
C7H4F2O3
Chinese Name
3,4-二氟水杨酸
Molecular Weight
174.102 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point177-179ºC
Boiling Point281.5±40.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point124.1±27.3 °C

Frequently Asked Questions

What is the CAS number of 3,4-difluoro-2-hydroxybenzoic acid?

The CAS number of 3,4-difluoro-2-hydroxybenzoic acid is 189283-51-0.

What are the molecular formula and molecular weight of 3,4-difluoro-2-hydroxybenzoic acid?

3,4-difluoro-2-hydroxybenzoic acid has molecular formula C7H4F2O3 and molecular weight 174.102 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-difluoro-2-hydroxybenzoic acid (CAS 189283-51-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35693-6 (accessed 2026-10-23).

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