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5-Methoxysalicylic acid

Also known as: 2-Hydroxy-5-methoxybenzoic acid, 6-Hydroxy-m-anisic acid, 5-Methoxy-2-hydroxybenzoic acid, 6-Hydroxy-3-anisic acid, NSC 2579, m-Anisic acid,6-hydroxy-

5-Methoxysalicylic acid (CAS 2612-02-4) 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 melting point of 141-143 °C(lit.), a boiling point of 347.0±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 146.5±17.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2612-02-4
Jingsj CID
J-44494-0
Molecular Formula
C8H8O4
Molecular Weight
168.147 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point141-143 °C(lit.)
Boiling Point347.0±27.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point146.5±17.2 °C
Exact Mass168.042252
PSA66.76000
LogP2.10
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.586
Additional Property1.7 g/L (10 ºC)

Activity & Biological Data

Additional Information[1]. Lee D, et al. 5-Methoxysalicylic acid matrix for ganglioside analysis with matrix-assisted laser desorption/ionization mass spectrometry. J Am Soc Mass Spectrom. 2015 Mar;26(3):522-5.

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 5-Methoxysalicylic acid?

The CAS number of 5-Methoxysalicylic acid is 2612-02-4.

What are the molecular formula and molecular weight of 5-Methoxysalicylic acid?

5-Methoxysalicylic acid has molecular formula C8H8O4 and molecular weight 168.147 g/mol.

What are the upstream and downstream products of 5-Methoxysalicylic acid?

For 5-Methoxysalicylic acid, Upstream Products: 3-Methoxybenzoic acid, 2,5-Dimethoxybenzoic acid, Carbon dioxide; Downstream Products: 2,5-Dihydroxybenzoic acid, 2-(2-Hydroxyphenyl)benzoxazole, 2-Hydroxy-5-methoxybenzaldehyde.

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

Last updated:

How to cite: Jingsj. "5-Methoxysalicylic acid (CAS 2612-02-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44494-0 (accessed 2026-11-09).

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