5-Methoxy-2-formylphenylboronic acid
Also known as: (2-formyl-5-methoxyphenyl)boronic acid, 2-FORMYL-5-METHOXYPHENYLBORONIC ACID, 2-Formyl-5-Methoxyphenylboroni, 2-Formyl-5-methoxybenzeneboronic acid, 2-Formyl-5-methoxyphenylboronic acid, 5-METHOXY-2-FORMYLBENZENEBORONIC ACID, 5-METHOXY-2-FORMYLPHENYLBORONIC ACID, 5-METHOXY-2-FORMYLPHENYLBORONIC ACID 96%, 5-Methoxy-2-formylphenylboronic acid,98%, 5-methoxy-2-formylbenzeneboronic acid, AKOS BRN-0107, MFCD03001335
5-Methoxy-2-formylphenylboronic acid (CAS 40138-18-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H9BO4 and a molecular weight of 179.96600 g/mol. Key properties include a melting point of 155-160 °C, a boiling point of 418ºC at 760mmHg, a density of 1.25g/cm3 and a flash point of 206.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40138-18-9
- Jingsj CID
- J-34442-3
- Molecular Formula
- C8H9BO4
- Molecular Weight
- 179.96600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 155-160 °C |
|---|---|
| Boiling Point | 418ºC at 760mmHg |
| Density | 1.25g/cm3 |
| Flash Point | 206.6ºC |
| Exact Mass | 180.05900 |
| PSA | 66.76000 |
| Refractive Index | 1.537 |
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 5-Methoxy-2-formylphenylboronic acid?
The CAS number of 5-Methoxy-2-formylphenylboronic acid is 40138-18-9.
What are the molecular formula and molecular weight of 5-Methoxy-2-formylphenylboronic acid?
5-Methoxy-2-formylphenylboronic acid has molecular formula C8H9BO4 and molecular weight 179.96600 g/mol.
What are the upstream and downstream products of 5-Methoxy-2-formylphenylboronic acid?
For 5-Methoxy-2-formylphenylboronic acid, Upstream Products: 4-Methoxybenzaldehyde; Downstream Products: 2-Hydroxy-4-methoxybenzaldehyde, Aristolactam BIII.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methoxy-2-formylphenylboronic acid (CAS 40138-18-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34442-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.