3,4-Dimethylphenylboronic acid
Also known as: 3,4-Dimethylbenzeneboronic acid, (3,4-Dimethylphenyl)boronic acid, 3,4-Dimethylphenylboronicaci, 3,4-Dimethylphenylbo, B-(3,4-DiMethylphenyl)boronic acid, Boronic acid, B-(3,4-dimethylphenyl)-, 3,4-diemthylphenylboronic acid
3,4-Dimethylphenylboronic acid (CAS 55499-43-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H11BO2 and a molecular weight of 149.983 g/mol. Key properties include a melting point of 220°C, a boiling point of 304.9±52.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 138.2±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55499-43-9
- Jingsj CID
- J-9590-9
- Molecular Formula
- C8H11BO2
- Molecular Weight
- 149.983 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 220°C |
|---|---|
| Boiling Point | 304.9±52.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 138.2±30.7 °C |
| Exact Mass | 150.085205 |
| PSA | 40.46000 |
| LogP | 2.51 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.523 |
Frequently Asked Questions
What is the CAS number of 3,4-Dimethylphenylboronic acid?
The CAS number of 3,4-Dimethylphenylboronic acid is 55499-43-9.
What are the molecular formula and molecular weight of 3,4-Dimethylphenylboronic acid?
3,4-Dimethylphenylboronic acid has molecular formula C8H11BO2 and molecular weight 149.983 g/mol.
What are the upstream and downstream products of 3,4-Dimethylphenylboronic acid?
For 3,4-Dimethylphenylboronic acid, Upstream Products: Trimethyl borate, 4-Bromo-1,2-dimethylbenzene; Downstream Products: 3,3',4,4'-TETRAMETHYLBIPHENYL, 3,4-Dimethylphenol, 3,4-Dimethylbenzonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dimethylphenylboronic acid (CAS 55499-43-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9590-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.