4-Methoxy-3-methylbenzoic acid

Also known as: 3-Methyl-p-anisic acid, 3-methyl-4-methoxybenzoic acid, 4-Hydroxy-3-methylbenzoic acid methyl ether, 4-Methoxy-3-methylbenzoesaeure, 4-Methoxy-m-toluic acid, 4-Methoxy-m-toluylsaeure, 4-methoxy-3-methyl-benzoic acid, Benzoic acid, 4-methoxy-3-methyl-

4-Methoxy-3-methylbenzoic acid (CAS 6880-04-2) 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 166.174 g/mol. Key properties include a melting point of 177-181 °C(lit.), a boiling point of 285.3±20.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 114.2±15.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6880-04-2
Jingsj CID: J-4364-1
Molecular Formula: C₉H₁₀O₃
Molecular Weight: 166.174 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	177-181 °C(lit.)
Boiling Point	285.3±20.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	114.2±15.3 °C
Exact Mass	166.062988
PSA	46.53000
LogP	2.42
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.541

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. 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 4-Methoxy-3-methylbenzoic acid?

The CAS number of 4-Methoxy-3-methylbenzoic acid is 6880-04-2.

What are the molecular formula and molecular weight of 4-Methoxy-3-methylbenzoic acid?

4-Methoxy-3-methylbenzoic acid has molecular formula C9H10O3 and molecular weight 166.174 g/mol.

What are the upstream and downstream products of 4-Methoxy-3-methylbenzoic acid?

For 4-Methoxy-3-methylbenzoic acid, Upstream Products: 4-Methoxy-3-methylbenzaldehyde, Carbon dioxide, 4-Bromo-1-methoxy-2-methylbenzene; Downstream Products: 4-Methoxy-3-methylphenylacetic acid, 4-Hydroxy-3-methylbenzoic acid, 4-Hydroxyisophthalic acid.

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. "4-Methoxy-3-methylbenzoic acid (CAS 6880-04-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4364-1 (accessed 2026-11-09).

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