1,4-Benzenediboronic acid
Also known as: 1,4-Phenylenebisboronic acid, 1,4-Phenylenediboronic acid, Benzene-1,4-diboronic acid, 4-(Dihydroxyboryl)phenylboronic acid, p-Phenylenediboronic acid, benzene-1,4-diyldiboronic acid, p-Phenyldiboronic acid
1,4-Benzenediboronic acid (CAS 4612-26-4) 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 165.75 g/mol. Key properties include a melting point of >350 °C(lit.), a boiling point of 420.1±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 207.9±31.5 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 4612-26-4
- Jingsj CID
- J-48658-8
- Molecular Formula
- C6H8B2O4
- Molecular Weight
- 165.75 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >350 °C(lit.) |
|---|---|
| Boiling Point | 420.1±55.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 207.9±31.5 °C |
| Exact Mass | 166.060867 |
| PSA | 80.92000 |
| LogP | 0.96 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.555 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1,4-Benzenediboronic acid?
The CAS number of 1,4-Benzenediboronic acid is 4612-26-4.
What are the molecular formula and molecular weight of 1,4-Benzenediboronic acid?
1,4-Benzenediboronic acid has molecular formula C6H8B2O4 and molecular weight 165.75 g/mol.
Is 1,4-Benzenediboronic acid hazardous?
1,4-Benzenediboronic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of 1,4-Benzenediboronic acid?
For 1,4-Benzenediboronic acid, Upstream Products: 1,4-Dibromobenzene, Water, Trimethyl borate; Downstream Products: 4-Hydroxy-4'-nitrobiphenyl, 4,4''-Dinitro-p-terphenyl, 4,4''-Diamino-p-terphenyl.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Benzenediboronic acid (CAS 4612-26-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48658-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.