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2-hydroxy-3,4-dimethylbenzoic acid

2-羟基-3,4-二甲基苯甲酸

Also known as: 2-HYDROXY-3,4-DIMETHYL-BENZOIC ACID, 3,4-Dimethyl-2-hydroxybenzoic acid, 3,4-dimethylsalicylic acid, Benzoic acid, 2-hydroxy-3,4-dimethyl-, 2-Hydroxy-3,4-dimethyl-benzoesaeure, 3,4-Dimethyl-2-hydroxybenzoesaeure, 3,4-Dimethylsalicylsaeure, 3,4-dimethyl-2-hydroxybenzoic acid

2-hydroxy-3,4-dimethylbenzoic acid (CAS 58138-74-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H10O3 and a molecular weight of 166.17400 g/mol. It is also known as 2-HYDROXY-3,4-DIMETHYL-BENZOIC ACID, 3,4-Dimethyl-2-hydroxybenzoic acid and 3,4-dimethylsalicylic acid. Key properties include a boiling point of 323.5ºC at 760mmHg, a density of 1.249g/cm3 and a flash point of 163.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
58138-74-2
Jingsj CID
J-1084514-3
Molecular Formula
C9H10O3
Chinese Name
2-羟基-3,4-二甲基苯甲酸
Molecular Weight
166.17400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point323.5ºC at 760mmHg
Density1.249g/cm3
Flash Point163.7ºC

Frequently Asked Questions

What is the CAS number of 2-hydroxy-3,4-dimethylbenzoic acid?

The CAS number of 2-hydroxy-3,4-dimethylbenzoic acid is 58138-74-2.

What are the molecular formula and molecular weight of 2-hydroxy-3,4-dimethylbenzoic acid?

2-hydroxy-3,4-dimethylbenzoic acid has molecular formula C9H10O3 and molecular weight 166.17400 g/mol.

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

Last updated:

How to cite: Jingsj. "2-hydroxy-3,4-dimethylbenzoic acid (CAS 58138-74-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084514-3 (accessed 2026-10-22).

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