4-Acetylphenylboronic acid
Also known as: 4-Acetylbenzeneboronic acid, 4-Boronoacetophenone, p-Acetylphenylboronic acid, Acetophenone-4-boronic acid, 4-Acetylphenylboronic acid (contains varying amounts of anhydride)
4-Acetylphenylboronic acid (CAS 149104-90-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H9BO3 and a molecular weight of 163.966 g/mol. Key properties include a melting point of 240-244 °C(lit.), a boiling point of 354.2±44.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 168.0±28.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 149104-90-5
- Jingsj CID
- J-1186984-4
- Molecular Formula
- C8H9BO3
- Molecular Weight
- 163.966 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 240-244 °C(lit.) |
|---|---|
| Boiling Point | 354.2±44.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 168.0±28.4 °C |
| Exact Mass | 164.064468 |
| PSA | 57.53000 |
| LogP | 1.04 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.536 |
| Additional Property | 25 g/L |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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-Acetylphenylboronic acid?
The CAS number of 4-Acetylphenylboronic acid is 149104-90-5.
What are the molecular formula and molecular weight of 4-Acetylphenylboronic acid?
4-Acetylphenylboronic acid has molecular formula C8H9BO3 and molecular weight 163.966 g/mol.
Is 4-Acetylphenylboronic acid hazardous?
4-Acetylphenylboronic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 4-Acetylphenylboronic acid?
For 4-Acetylphenylboronic acid, Upstream Products: 4-(1-Hydroxyethyl)phenylboronic acid, 4'-Bromoacetophenone, 1-(4-Iodophenyl)ethanone; Downstream Products: 4'-Fluoroacetophenone, 1-(3-Fluorophenyl)ethanone, 4-Acetoxyphenol.
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-Acetylphenylboronic acid (CAS 149104-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1186984-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.