4-Methoxy-2-methylphenylboronic acid
Also known as: (4-Methoxy-2-methylphenyl)boronic acid, 4-Methoxy-2-methylbenzeneboronic acid, 2-Methyl-4-methoxyphenylboronic acid, Boronic acid, B-(4-methoxy-2-methylphenyl)-
4-Methoxy-2-methylphenylboronic acid (CAS 208399-66-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H11BO3 and a molecular weight of 165.982 g/mol. Key properties include a melting point of 169-174 °C(lit.), a boiling point of 327.1±52.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 151.6±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 208399-66-0
- Jingsj CID
- J-27291-3
- Molecular Formula
- C8H11BO3
- Molecular Weight
- 165.982 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 169-174 °C(lit.) |
|---|---|
| Boiling Point | 327.1±52.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 151.6±30.7 °C |
| Exact Mass | 166.080124 |
| PSA | 49.69000 |
| LogP | 1.97 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.520 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Methoxy-2-methylphenylboronic acid?
The CAS number of 4-Methoxy-2-methylphenylboronic acid is 208399-66-0.
What are the molecular formula and molecular weight of 4-Methoxy-2-methylphenylboronic acid?
4-Methoxy-2-methylphenylboronic acid has molecular formula C8H11BO3 and molecular weight 165.982 g/mol.
What are the upstream and downstream products of 4-Methoxy-2-methylphenylboronic acid?
For 4-Methoxy-2-methylphenylboronic acid, Upstream Products: 1-bromo-4-methoxy-2-methylbenzene, Triisopropyl borate, 2-Bromo-3,4-dimethoxybenzaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Methoxy-2-methylphenylboronic acid (CAS 208399-66-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27291-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.