2,5-Diethyl-3,4-diphenylcyclopentadienone

2,5-二乙基-3,4-二苯基环戊二烯酮

Also known as: 2,5-Diethyl-3,4-diphenyl-2,4-cyclopentadien-1-one, 2,5-Diethyl-3,4-diphenylcyclopenta-2,4-dien-1-one, 2,5-Diethyl-3,4-diphenyl-cyclopentadienone, 2,5-Diaethyl-3,4-diphenyl-cyclopentadienon, EINECS 257-523-4, MFCD00013748

2,5-Diethyl-3,4-diphenylcyclopentadienone (CAS 51932-77-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C21H20O and a molecular weight of 288.38300 g/mol. It is also known as 2,5-Diethyl-3,4-diphenyl-2,4-cyclopentadien-1-one, 2,5-Diethyl-3,4-diphenylcyclopenta-2,4-dien-1-one and 2,5-Diethyl-3,4-diphenyl-cyclopentadienone. Key properties include a melting point of 102-103ºC, a boiling point of 447.8ºC at 760 mmHg, a density of 1.078g/cm3 and a flash point of 195.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51932-77-5
Jingsj CID
J-17773-5
Molecular Formula
C21H20O
Chinese Name
2,5-二乙基-3,4-二苯基环戊二烯酮
Molecular Weight
288.38300 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point102-103ºC
Boiling Point447.8ºC at 760 mmHg
Density1.078g/cm3
Flash Point195.6ºC

Frequently Asked Questions

What is the CAS number of 2,5-Diethyl-3,4-diphenylcyclopentadienone?

The CAS number of 2,5-Diethyl-3,4-diphenylcyclopentadienone is 51932-77-5.

What are the molecular formula and molecular weight of 2,5-Diethyl-3,4-diphenylcyclopentadienone?

2,5-Diethyl-3,4-diphenylcyclopentadienone has molecular formula C21H20O and molecular weight 288.38300 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,5-Diethyl-3,4-diphenylcyclopentadienone (CAS 51932-77-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17773-5 (accessed 2026-10-24).

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