4-Ethoxycarbonylphenylboronic acid

4-乙氧羰基苯硼酸

Also known as: [4-(Ethoxycarbonyl)phenyl]boronic acid, Ethyl 4-boronobenzoate, 4-Carboethoxybenzeneboronic acid, 4-(Ethoxycarbonyl)benzeneboronic acid, 4-Borono-benzoic acid 1-ethyl ester, p-Ethoxycarbonylphenylboronic acid, 4-Carbethoxy-phenyl-boronic acid

4-Ethoxycarbonylphenylboronic acid (CAS 4334-88-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H11BO4 and a molecular weight of 193.992 g/mol. It is also known as [4-(Ethoxycarbonyl)phenyl]boronic acid, Ethyl 4-boronobenzoate and 4-Carboethoxybenzeneboronic acid. Key properties include a melting point of 184-189 °C, a boiling point of 355.5±44.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 168.8±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4334-88-7
Jingsj CID: J-28813-2
Molecular Formula: C₉H₁₁BO₄
Chinese Name: 4-乙氧羰基苯硼酸
Molecular Weight: 193.992 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	184-189 °C
Boiling Point	355.5±44.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	168.8±28.4 °C

Frequently Asked Questions

What is the CAS number of 4-Ethoxycarbonylphenylboronic acid?

The CAS number of 4-Ethoxycarbonylphenylboronic acid is 4334-88-7.

What are the molecular formula and molecular weight of 4-Ethoxycarbonylphenylboronic acid?

4-Ethoxycarbonylphenylboronic acid has molecular formula C9H11BO4 and molecular weight 193.992 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Ethoxycarbonylphenylboronic acid (CAS 4334-88-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28813-2 (accessed 2026-10-23).

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