4-Fluoro-2-methylanisole

Also known as: 4-Fluoro-1-methoxy-2-methylbenzene, 5-Fluoro-2-methoxytoluene, 2-Methoxy-5-fluorotoluene, 4-Fluoro-2-methylphenyl methyl ether, Benzene, 4-fluoro-1-methoxy-2-methyl-

4-Fluoro-2-methylanisole (CAS 399-54-2) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C8H9FO and a molecular weight of 140.155 g/mol. Key properties include a boiling point of 177.9±20.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 61.6±14.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 399-54-2
Jingsj CID: J-9323-2
Molecular Formula: C₈H₉FO
Molecular Weight: 140.155 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	177.9±20.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	61.6±14.0 °C
Exact Mass	140.063736
PSA	9.23000
LogP	2.72
Vapor Pressure	1.4±0.3 mmHg at 25°C
Refractive Index	1.476

Customs & Trade Information

HS Code	2909309090
Summary	2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Fluoro-2-methylanisole?

The CAS number of 4-Fluoro-2-methylanisole is 399-54-2.

What are the molecular formula and molecular weight of 4-Fluoro-2-methylanisole?

4-Fluoro-2-methylanisole has molecular formula C8H9FO and molecular weight 140.155 g/mol.

What are the upstream and downstream products of 4-Fluoro-2-methylanisole?

For 4-Fluoro-2-methylanisole, Upstream Products: 4-Fluoro-2-methylaniline, 4-Fluoro-2-methylphenol, Dimethyl sulfate; Downstream Products: 5-Fluorosalicylic acid, 5-Fluoro-2-methoxybenzoic acid, 4-Fluoro-2-methylphenol.

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-Fluoro-2-methylanisole (CAS 399-54-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9323-2 (accessed 2026-11-09).

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