4,4'-Diphenylbenzophenone

4,4'-二苯基二苯甲酮

Also known as: Bis(4-biphenylyl)methanone, Bis(4-phenylphenyl)methanone, Di-4-biphenylyl ketone, Bis(biphenyl-4-yl)methanone, 4,4'-Diphenylbenzophenone, NSC 21390

CAS No.: 3478-90-8
Jingsj CID: J-1510596-7
Molecular Formula: C₂₅H₁₈O
Chinese Name: 4,4'-二苯基二苯甲酮
Molecular Weight: 334.41000 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	228-229ºC
Boiling Point	523.7ºC at 760 mmHg
Density	1.121 g/cm3
Flash Point	229.7ºC

Frequently Asked Questions

What is the CAS number of 4,4'-Diphenylbenzophenone?

3478-90-8

What are the molecular formula and molecular weight of 4,4'-Diphenylbenzophenone?

C25H18O, molecular weight 334.41000 g/mol

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026