(3,5-Diphenylphenyl)boronic acid
Also known as: 1,1':3',1''-Terphenyl-5'-boronic acid, 5'-m-Terphenylboronic acid, 3,5-Diphenylbenzeneboronic acid, [1,1':3',1''-Terphenyl]-5'-ylboronic acid, 3,5-BPBA, Boronic acid, B-[1,1':3',1''-terphenyl]-5'-yl-
(3,5-Diphenylphenyl)boronic acid (CAS 128388-54-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H15BO2 and a molecular weight of 274.121 g/mol. Key properties include a melting point of 292-296ºC, a boiling point of 513.0±60.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 264.1±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 128388-54-5
- Jingsj CID
- J-46087-7
- Molecular Formula
- C18H15BO2
- Molecular Weight
- 274.121 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 292-296ºC |
|---|---|
| Boiling Point | 513.0±60.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 264.1±32.9 °C |
| Exact Mass | 274.116516 |
| PSA | 40.46000 |
| LogP | 5.39 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.652 |
| Additional Property | Insoluble in water. |
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 (3,5-Diphenylphenyl)boronic acid?
The CAS number of (3,5-Diphenylphenyl)boronic acid is 128388-54-5.
What are the molecular formula and molecular weight of (3,5-Diphenylphenyl)boronic acid?
(3,5-Diphenylphenyl)boronic acid has molecular formula C18H15BO2 and molecular weight 274.121 g/mol.
What are the upstream and downstream products of (3,5-Diphenylphenyl)boronic acid?
For (3,5-Diphenylphenyl)boronic acid, Upstream Products: Trimethyl borate, Triisopropyl borate, 1-Bromo-3,5-diphenylbenzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(3,5-Diphenylphenyl)boronic acid (CAS 128388-54-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46087-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.