2,3,4-Trimethoxyphenylboronic acid

2,3,4-三甲氧基苯硼酸

Also known as: (2,3,4-Trimethoxyphenyl)boronic acid, 2,3,4-Trimethoxybenzeneboronic acid, 2-Methoxy-3-methoxy-4-methoxyphenyldihydroxyborane, MFCD01318183, AKOS BRN-0139

2,3,4-Trimethoxyphenylboronic acid (CAS 118062-05-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H13BO5 and a molecular weight of 212.00800 g/mol. It is also known as (2,3,4-Trimethoxyphenyl)boronic acid, 2,3,4-Trimethoxybenzeneboronic acid and 2-Methoxy-3-methoxy-4-methoxyphenyldihydroxyborane. Key properties include a melting point of 74-79 °C(lit.), a boiling point of 371.1ºC at 760mmHg, a density of 1.21g/cm3 and a flash point of 178.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
118062-05-8
Jingsj CID
J-25047-8
Molecular Formula
C9H13BO5
Chinese Name
2,3,4-三甲氧基苯硼酸
Molecular Weight
212.00800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point74-79 °C(lit.)
Boiling Point371.1ºC at 760mmHg
Density1.21g/cm3
Flash Point178.3ºC

Frequently Asked Questions

What is the CAS number of 2,3,4-Trimethoxyphenylboronic acid?

The CAS number of 2,3,4-Trimethoxyphenylboronic acid is 118062-05-8.

What are the molecular formula and molecular weight of 2,3,4-Trimethoxyphenylboronic acid?

2,3,4-Trimethoxyphenylboronic acid has molecular formula C9H13BO5 and molecular weight 212.00800 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3,4-Trimethoxyphenylboronic acid (CAS 118062-05-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25047-8 (accessed 2026-10-22).

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