1,3-Benzenediboronic acid

Also known as: 1,3-Benzenediboronic acid, 1,3-Phenylenediboronic acid, (3-boronophenyl)boronic acid, Boronic acid, B,B'-1,3-phenylenebis-, MFCD03092915

1,3-Benzenediboronic acid (CAS 4612-28-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8B2O4 and a molecular weight of 165.747 g/mol. Key properties include a melting point of >300°C, a boiling point of 456.4±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 229.8±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 4612-28-6
Jingsj CID: J-20634-8
Molecular Formula: C₆H₈B₂O₄
Molecular Weight: 165.747 g/mol
Category: Organic Acids
Last updated: 11/3/2026

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Physicochemical Properties

Melting Point	>300°C
Boiling Point	456.4±55.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	229.8±31.5 °C
Exact Mass	166.060867
PSA	80.92000
LogP	0.96
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.555

Customs & Trade Information

HS Code	29310095

Frequently Asked Questions

What is the CAS number of 1,3-Benzenediboronic acid?

The CAS number of 1,3-Benzenediboronic acid is 4612-28-6.

What are the molecular formula and molecular weight of 1,3-Benzenediboronic acid?

1,3-Benzenediboronic acid has molecular formula C6H8B2O4 and molecular weight 165.747 g/mol.

What are the upstream and downstream products of 1,3-Benzenediboronic acid?

For 1,3-Benzenediboronic acid, Upstream Products: Water, Boron tribromide, benzene.

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

Last updated: 11/3/2026

How to cite: Jingsj. "1,3-Benzenediboronic acid (CAS 4612-28-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20634-8 (accessed 2026-11-09).

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