1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one

4-乙酰基-4'-溴代联苯

Also known as: 4-Acetyl-4'-bromobiphenyl, 4'-(4-Bromophenyl)acetophenone, 4-(4-Bromophenyl)acetophenone, 4-Acetyl-4'-bromodiphenyl, 4'-bromo-4-acetylbiphenyl, 1-(4'-bromo[1,1'-biphenyl]-4-yl)ethanone, AKOS BAR-2458, Acetylbromodiphenyl, TIMTEC-BB SBB005889

1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one (CAS 5731-01-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H11BrO and a molecular weight of 275.14100 g/mol. It is also known as 4-Acetyl-4'-bromobiphenyl, 4'-(4-Bromophenyl)acetophenone and 4-(4-Bromophenyl)acetophenone. Key properties include a melting point of 129-133 °C(lit.), a boiling point of 372.1ºC at 760 mmHg, a density of 1.359 g/cm3 and a flash point of 76.7ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5731-01-1
Jingsj CID: J-6544-9
Molecular Formula: C₁₄H₁₁BrO
Chinese Name: 4-乙酰基-4'-溴代联苯
Molecular Weight: 275.14100 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	129-133 °C(lit.)
Boiling Point	372.1ºC at 760 mmHg
Density	1.359 g/cm3
Flash Point	76.7ºC

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

Frequently Asked Questions

What is the CAS number of 1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one?

The CAS number of 1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one is 5731-01-1.

What are the molecular formula and molecular weight of 1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one?

1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one has molecular formula C14H11BrO and molecular weight 275.14100 g/mol.

Is 1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one hazardous?

1-(4'-bromo[1,1'-biphenyl]-4-yl)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: 8/21/2026

How to cite: Jingsj. "1-(4'-bromo[1,1'-biphenyl]-4-yl)ethan-1-one (CAS 5731-01-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6544-9 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.