4,4'-Diphenoxybenzophenone

CAS NO.：14984-21-5
Empirical Formula: C25H18O3
Molecular Weight: 366.41
MDL number: MFCD00077969
EINECS: 403-390-4
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 04:42:02

What is 4,4'-Diphenoxybenzophenone?

Chemical properties

4,40 -Diphenoxydiphenyl ketone, mp 148℃, bp 270℃, is a colorless solid, that is insoluble in water and soluble in organic solvents.

The Uses of 4,4'-Diphenoxybenzophenone

4,4' -Diphenoxybenzophenone is used exclusively for the production of highperformance plastics, e.g., by Friedel – Crafts reaction with aromatic dicarboxylic acid chlorides, such as terephthalic acid dichloride. The plastics display a series of industrially interesting properties, such as long-term heat resistance up to 270℃, fire-extinguishing properties, and high chemical- and solvent resistance. The polymer is worked by injection molding or spinning.

Preparation

4,4' -Diphenoxydiphenyl ketone is produced from diphenyl ether and phosgene in the presence of aluminum chloride as catalyst. It may also be prepared by the catalyzed atmospheric oxidation of 4,40 -diphenoxydiphenylmethane or the reaction of diphenyl ether, tetrachloromethane, and aluminum chloride.

Properties of 4,4'-Diphenoxybenzophenone

Melting point:	148-150°C
Boiling point:	514.4±35.0 °C(Predicted)
Density	1.186±0.06 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
color	Off-white
BRN	2165449
CAS DataBase Reference	14984-21-5(CAS DataBase Reference)
NIST Chemistry Reference	Methanone, bis(4-phenoxyphenyl)-(14984-21-5)
EPA Substance Registry System	Methanone, bis(4-phenoxyphenyl)- (14984-21-5)

Safety information for 4,4'-Diphenoxybenzophenone

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.