2-hydroxy-3,4-dimethylbenzoic acid

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. 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-1084514-4
Molecular Formula: C₉H₁₀O₃
Molecular Weight: 166.17400 g/mol
Category: Organic Acids
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	323.5ºC at 760mmHg
Density	1.249g/cm3
Flash Point	163.7ºC
Exact Mass	166.06300
PSA	57.53000
LogP	1.70720
Refractive Index	1.587

Customs & Trade Information

HS Code	2918290000
Summary	HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

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.

What are the upstream and downstream products of 2-hydroxy-3,4-dimethylbenzoic acid?

For 2-hydroxy-3,4-dimethylbenzoic acid, Upstream Products: 2-Amino-3,4-dimethylbenzoic acid, 3,4-Dimethylbenzoic acid, 2,3-Dimethylphenol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-hydroxy-3,4-dimethylbenzoic acid (CAS 58138-74-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084514-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.