3-Hydroxybenzoic acid

3-羟基苯甲酸

Also known as: m-Hydroxybenzoic acid, m-Salicylic acid, 3-Carboxyphenol, Benzoic acid, 3-hydroxy-, META-HYDROXYBENZOIC ACID, m-Hydroxybenzoic, m-Oxybenzoic acid, 3-Hydroxy benzoic acid

3-Hydroxybenzoic acid (CAS 99-06-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6O3 and a molecular weight of 138.121 g/mol. It is also known as m-Hydroxybenzoic acid, m-Salicylic acid and 3-Carboxyphenol. Key properties include a melting point of 201 °C, a boiling point of 346.1±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 177.3±19.7 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99-06-9
Jingsj CID
J-32710-3
Molecular Formula
C7H6O3
Chinese Name
3-羟基苯甲酸
Molecular Weight
138.121 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point201 °C
Boiling Point346.1±25.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point177.3±19.7 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3-Hydroxybenzoic acid?

The CAS number of 3-Hydroxybenzoic acid is 99-06-9.

What are the molecular formula and molecular weight of 3-Hydroxybenzoic acid?

3-Hydroxybenzoic acid has molecular formula C7H6O3 and molecular weight 138.121 g/mol.

Is 3-Hydroxybenzoic acid hazardous?

3-Hydroxybenzoic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "3-Hydroxybenzoic acid (CAS 99-06-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32710-3 (accessed 2026-10-22).

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