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4-Fluoro-2-methylphenylboronic acid

4-氟-2-甲基苯硼酸

Also known as: 4-Fluoro-o-tolylboronic acid, 4-Fluoro-2-methylbenzeneboronic acid, 2-Methyl-4-fluorophenylboronic acid, Boronic acid, B-(4-fluoro-2-methylphenyl)-, 4-Fluoro-2-Methylphenylboronic Acid, AKOS BRN-0102, MFCD02093072

4-Fluoro-2-methylphenylboronic acid (CAS 139911-29-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H8BFO2 and a molecular weight of 153.95 g/mol. It is also known as 4-Fluoro-o-tolylboronic acid, 4-Fluoro-2-methylbenzeneboronic acid and 2-Methyl-4-fluorophenylboronic acid. Key properties include a melting point of 191-196 °C(lit.), a boiling point of 277.4±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 121.6±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139911-29-8
Jingsj CID
J-4533-5
Molecular Formula
C7H8BFO2
Chinese Name
4-氟-2-甲基苯硼酸
Molecular Weight
153.95 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point191-196 °C(lit.)
Boiling Point277.4±50.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point121.6±30.1 °C

Frequently Asked Questions

What is the CAS number of 4-Fluoro-2-methylphenylboronic acid?

The CAS number of 4-Fluoro-2-methylphenylboronic acid is 139911-29-8.

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

4-Fluoro-2-methylphenylboronic acid has molecular formula C7H8BFO2 and molecular weight 153.95 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Fluoro-2-methylphenylboronic acid (CAS 139911-29-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4533-5 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.