2,6-Dihydroxybenzoic acid

2,6-二羟基苯甲酸

Also known as: 2,6-Resorcylic acid, γ-Resorcylic acid, Gamma-Resorcylic Acid, Resorcinol-2-carboxylic acid, 6-Hydroxysalicylic acid, 2-Carboxyresorcinol

2,6-Dihydroxybenzoic acid (CAS 303-07-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6O4 and a molecular weight of 154.120 g/mol. It is also known as 2,6-Resorcylic acid, γ-Resorcylic acid and Gamma-Resorcylic Acid. Key properties include a melting point of 165 °C (dec.)(lit.), a boiling point of 343.7±32.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 175.8±21.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
303-07-1
Jingsj CID
J-35854-5
Molecular Formula
C7H6O4
Chinese Name
2,6-二羟基苯甲酸
Molecular Weight
154.120 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point165 °C (dec.)(lit.)
Boiling Point343.7±32.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point175.8±21.6 °C

Frequently Asked Questions

What is the CAS number of 2,6-Dihydroxybenzoic acid?

The CAS number of 2,6-Dihydroxybenzoic acid is 303-07-1.

What are the molecular formula and molecular weight of 2,6-Dihydroxybenzoic acid?

2,6-Dihydroxybenzoic acid has molecular formula C7H6O4 and molecular weight 154.120 g/mol.

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

Last updated:

How to cite: Jingsj. "2,6-Dihydroxybenzoic acid (CAS 303-07-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35854-5 (accessed 2026-10-22).

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