(4-Ethynylphenyl)boronic acid
4-乙炔基苯基硼酸
Also known as: 4-ethynylphenylboronic acid, B-(4-Ethynylphenyl)-boronic acid, Boronic acid, (4-ethynylphenyl)- (9CI), Boronic acid, B-(4-ethynylphenyl)-
(4-Ethynylphenyl)boronic acid (CAS 263368-72-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H7BO2 and a molecular weight of 145.95100 g/mol. It is also known as 4-ethynylphenylboronic acid, B-(4-Ethynylphenyl)-boronic acid and Boronic acid, (4-ethynylphenyl)- (9CI). Key property: a boiling point of 292.5±42.0°C at 760 mmHg. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 263368-72-5
- Jingsj CID
- J-1182777-3
- Molecular Formula
- C8H7BO2
- Chinese Name
- 4-乙炔基苯基硼酸
- Molecular Weight
- 145.95100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 292.5±42.0°C at 760 mmHg |
|---|---|
| Exact Mass | 146.05400 |
| PSA | 40.46000 |
| Storage Conditions | -20°C |
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-Ethynylphenyl)boronic acid?
The CAS number of (4-Ethynylphenyl)boronic acid is 263368-72-5.
What are the molecular formula and molecular weight of (4-Ethynylphenyl)boronic acid?
(4-Ethynylphenyl)boronic acid has molecular formula C8H7BO2 and molecular weight 145.95100 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(4-Ethynylphenyl)boronic acid (CAS 263368-72-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1182777-3 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.