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4,4'-Dimethylbenzophenone

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4,4'-Dimethylbenzophenone Basic information

Product Name:
4,4'-Dimethylbenzophenone
Synonyms:
  • 4,4'-Carbonylbis(toluene)
  • Benzophenone, 4,4'-dimethyl-
  • bis(4-methylphenyl)-methanon
  • Bis(4-methylphenyl)methanone
  • Bis-p-tolyl ketone
  • Di(4-methylphenyl) ketone
  • Di-p-tolylmethanone
  • Methanone, bis(4-methylphenyl)-
CAS:
611-97-2
MF:
C15H14O
MW:
210.27
EINECS:
210-287-6
Product Categories:
  • Aromatic Benzophenones & Derivatives (substituted)
  • C15 to C38
  • Carbonyl Compounds
  • Ketones
Mol File:
611-97-2.mol
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4,4'-Dimethylbenzophenone Chemical Properties

Melting point:
90-93 °C(lit.)
Boiling point:
200 °C17 mm Hg(lit.)
Density 
1.0232 (rough estimate)
refractive index 
1.5361 (estimate)
Flash point:
200°C/17mm
storage temp. 
Sealed in dry,Room Temperature
form 
Crystalline Powder
color 
Pale brown
Water Solubility 
Insoluble in water.
BRN 
1240527
CAS DataBase Reference
611-97-2(CAS DataBase Reference)
NIST Chemistry Reference
4,4'-Dimethyl benzophenone(611-97-2)
EPA Substance Registry System
Methanone, bis(4-methylphenyl)- (611-97-2)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
22-24/25-36/37-26
WGK Germany 
3
TSCA 
Yes
HS Code 
29143990

MSDS

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4,4'-Dimethylbenzophenone Usage And Synthesis

Chemical Properties

Pale brown crystalline powder

Uses

4,4'-Dimethylbenzophenone is used as catalytic agent and petrochemical additive. It is also used as pharmaceutical intermediates.

Synthesis Reference(s)

Tetrahedron, 50, p. 12821, 1994 DOI: 10.1016/S0040-4020(01)81203-5
Tetrahedron Letters, 27, p. 3911, 1986 DOI: 10.1016/S0040-4039(00)83914-3

General Description

4,4′-Dimethylbenzophenone reacts with bis(trichlorotitanium phenoxide), a bidentate Lewis acid, to form a crystalline complex.

Purification Methods

Purify the benzophenone by zone refining or distllation, preferably in a vacuum. [Beilstein 7 III 2181, 7 IV 1434.]

4,4'-DimethylbenzophenoneSupplier

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