2-Chloro-1-(4-fluorophenyl)ethan-1-one
2-氯-4'-氟苯乙酮
Also known as: 2-Chloro-4'-fluoroacetophenone, 4-Fluorophenacyl chloride, 2-Chloro-1-(4-fluorophenyl)ethanone, α-Chloro-4-fluoroacetophenone, p-Fluorophenacyl chloride, ω-Chloro-4-fluoroacetophenone, 2-Chloro-1-(4-fluorophenyl)ethan-1-one
2-Chloro-1-(4-fluorophenyl)ethan-1-one (CAS 456-04-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H6ClFO and a molecular weight of 172.584 g/mol. It is also known as 2-Chloro-4'-fluoroacetophenone, 4-Fluorophenacyl chloride and 2-Chloro-1-(4-fluorophenyl)ethanone. Key properties include a melting point of 47-50 °C(lit.), a boiling point of 247.0±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 103.2±20.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 456-04-2
- Jingsj CID
- J-24747-4
- Molecular Formula
- C8H6ClFO
- Chinese Name
- 2-氯-4'-氟苯乙酮
- Molecular Weight
- 172.584 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 47-50 °C(lit.) |
|---|---|
| Boiling Point | 247.0±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 103.2±20.4 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 2-Chloro-1-(4-fluorophenyl)ethan-1-one?
The CAS number of 2-Chloro-1-(4-fluorophenyl)ethan-1-one is 456-04-2.
What are the molecular formula and molecular weight of 2-Chloro-1-(4-fluorophenyl)ethan-1-one?
2-Chloro-1-(4-fluorophenyl)ethan-1-one has molecular formula C8H6ClFO and molecular weight 172.584 g/mol.
Is 2-Chloro-1-(4-fluorophenyl)ethan-1-one hazardous?
2-Chloro-1-(4-fluorophenyl)ethan-1-one has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Chloro-1-(4-fluorophenyl)ethan-1-one (CAS 456-04-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24747-4 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.