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4-(Trifluoromethoxy)phenylboronic acid

4-三氟甲氧基苯硼酸

Also known as: 4-(Trifluoromethoxy)benzeneboronic acid, 4-Trifluoromethoxyphenylboronic acid, Boronic acid, B-[4-(trifluoromethoxy)phenyl]-, B-[4-(Trifluoromethoxy)phenyl]boronic acid

4-(Trifluoromethoxy)phenylboronic acid (CAS 139301-27-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6BF3O3 and a molecular weight of 205.93 g/mol. It is also known as 4-(Trifluoromethoxy)benzeneboronic acid, 4-Trifluoromethoxyphenylboronic acid and Boronic acid, B-[4-(trifluoromethoxy)phenyl]-. Key properties include a melting point of 123-127 °C(lit.), a boiling point of 256.6±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 109.0±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139301-27-2
Jingsj CID
J-15790-2
Molecular Formula
C7H6BF3O3
Chinese Name
4-三氟甲氧基苯硼酸
Molecular Weight
205.93 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point123-127 °C(lit.)
Boiling Point256.6±50.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point109.0±30.1 °C

Frequently Asked Questions

What is the CAS number of 4-(Trifluoromethoxy)phenylboronic acid?

The CAS number of 4-(Trifluoromethoxy)phenylboronic acid is 139301-27-2.

What are the molecular formula and molecular weight of 4-(Trifluoromethoxy)phenylboronic acid?

4-(Trifluoromethoxy)phenylboronic acid has molecular formula C7H6BF3O3 and molecular weight 205.93 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(Trifluoromethoxy)phenylboronic acid (CAS 139301-27-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15790-2 (accessed 2026-10-22).

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