1,3-Diphenylacetone Chemical Properties

Melting point:

32-34 °C(lit.)

Boiling point:

330 °C(lit.)

Density 

1.04

refractive index 

1.5725 (estimate)

FEMA 

2397 | 1,3-DIPHENYL-2-PROPANONE

Flash point:

>230 °F

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

Chloroform (Slightly), Methanol (Slightly)

form 

Liquid or Crystalline Mass

color 

Clear yellow

Odor

at 10.00 % in dipropylene glycol. bitter almond benzaldehyde plastic seedy

Odor Type

powdery

Water Solubility 

Slightly soluble in water.

JECFA Number

832

BRN 

974767

Stability:

Stable. Combustible. Incompatible with strong oxidizing agents.

LogP

3.18

CAS DataBase Reference

102-04-5(CAS DataBase Reference)

NIST Chemistry Reference

2-Propanone, 1,3-diphenyl-(102-04-5)

EPA Substance Registry System

2-Propanone, 1,3-diphenyl- (102-04-5)

Safety Information

Safety Statements 

24/25-22

WGK Germany 

3

RTECS 

EC2030000

TSCA 

Yes

HS Code 

29143990

MSDS

• Language:English Provider:1,3-Diphenylacetone
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

1,3-Diphenylacetone Usage And Synthesis

Chemical Properties

1,3-Diphenyl-2-propanone has a sweet, faint, fruity odor reminiscent of bitter almond

Physical properties

White crystals or colorless crystalline mass. M.P. 40°C. B.P. 331°C.
1,3-Diphenylacetone is almost insoluble in water, soluble in alcohol and oils, poorly in Propylent glycol. Sweet, but rathtr faint, fruity-almondy odor of considerable tenacity.

Uses

1,3-Diphenylacetone is used in the aldol condensation reaction with benzil (a dicarbonyl) and base to create tetraphenylcyclopentadienone.

Definition

ChEBI: 1,3-Diphenyl-2-propanone is an aromatic compound.

Application

1,3-Diphenylacetone is occasionally used as a trace ingredient in floral perfums compositions, Fougere types, New Mown Hay, etc. wh:re it can act as a modifier for Coumarin, making its odor softer.
Used in fruit flavor compositions, and in imitation Honey, Nut, etc. - mostly in tracss only.

Preparation

By heating α,?α’-phenyl benzyl ethylene glycol or α,?α’-phenyl benzyl ethylene oxide in the presence of diluted H2SO4 or ZnCl2; also by dry distillation of phenylacetate and magnesium chloride (C6H5CH2COOMgCl) or other salts of phenylacetic acid.

Aroma threshold values

Aroma characteristics at 10% in ethanol. Sweet, powdery, and honey with floral rose nuances

Taste threshold values

Taste characteristics at 30 ppm: bitter with floral, rose and honey notes.

Synthesis Reference(s)

The Journal of Organic Chemistry, 33, p. 869, 1968 DOI: 10.1021/jo01266a094

Purification Methods

Fractionally crystallise it from its melt, then crystallise it from pet ether. Store it in the dark. [Beilstein 7 IV 1420.]

1,3-Diphenylacetone(102-04-5)Related Product Information

• Zinc dibenzyldithiocarbamate
• Dipropylene glycol monomethyl ether
• PHENCYCLONE
• Fluridone
• DIPHENYLCYCLOPROPENONE
• FLURTAMONE
• Fluorescamine
• Tetraphenylcyclopentadienone
• 1,3-Diphenylacetone
• 1,3-DIPHENYLPROPANETRIONE
• 1,1-Diphenylacetone, 99+%,UNSYM-DIPHENYLACETONE,1,1-DIPHENYLACETONE
• 1,3-DIPHENYLACETONE P-TOLUENESULFONYLHYDRAZONE
• 3-BROMO-1,1-DIPHENYLACETONE,3-Bromo-1,1-diphenylacetone, 90+%
• 1,3-Diphenylacetone oxime
• Acetone
• Propane
• Phenylacetone
• P-ANISYL BENZYL KETONE