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3-Hydroxy-2-methoxybenzoic acid

Also known as: 2-methoxy-3-hydroxybenzoic acid, Benzoic acid, 3-hydroxy-2-methoxy-, 3-hydroxy-2-methoxy-benzoic acid, o-Anisic acid, 3-hydroxy-

3-Hydroxy-2-methoxybenzoic acid (CAS 2169-28-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O4 and a molecular weight of 168.147 g/mol. Key properties include a boiling point of 346.1±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 146.0±17.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2169-28-0
Jingsj CID
J-1499077-3
Molecular Formula
C8H8O4
Molecular Weight
168.147 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point346.1±27.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point146.0±17.2 °C
Exact Mass168.042252
PSA66.76000
LogP0.89
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.586

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Hydroxy-2-methoxybenzoic acid?

The CAS number of 3-Hydroxy-2-methoxybenzoic acid is 2169-28-0.

What are the molecular formula and molecular weight of 3-Hydroxy-2-methoxybenzoic acid?

3-Hydroxy-2-methoxybenzoic acid has molecular formula C8H8O4 and molecular weight 168.147 g/mol.

What are the upstream and downstream products of 3-Hydroxy-2-methoxybenzoic acid?

For 3-Hydroxy-2-methoxybenzoic acid, Upstream Products: 2,3-Dimethoxybenzoic acid, n-Butyllithium, Guaiacol; Downstream Products: methyl 3-hydroxy-2-methoxybenzoate.

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

Last updated:

How to cite: Jingsj. "3-Hydroxy-2-methoxybenzoic acid (CAS 2169-28-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499077-3 (accessed 2026-11-09).

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