2-phenylpropionaldehyde dimethyl acetal Chemical Properties

Boiling point:

100-101 °C12 mm Hg(lit.)

Density 

0.992 g/mL at 25 °C(lit.)

vapor pressure 

30.1Pa at 24℃

FEMA 

2888 | 2-PHENYLPROPIONALDEHYDE DIMETHYL ACETAL

refractive index 

n20/D 1.493(lit.)

Flash point:

198 °F

solubility 

Almost insoluble in water, soluble in alcohol oils.

form 

Colourless liquid

Odor

at 100.00 %. floral leafy hyacinth green mushroom earthy walnut

Odor Type

floral

Water Solubility 

3.484g/L at 24℃

JECFA Number

1468

LogP

3 at 25℃

EPA Substance Registry System

Benzene, (2,2-dimethoxy-1-methylethyl)- (90-87-9)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

WGK Germany 

2

RTECS 

MU6480000

MSDS

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2-phenylpropionaldehyde dimethyl acetal Usage And Synthesis

Chemical Properties

2-Phenylpropionaldehyde dimethyl acetal has a strong, warm, spicy odor reminiscent of walnut with a warm, mushroom, nut-like taste.

Uses

Primarily processed for use as a Food and Flavor ingredient. Known for its quality and durability in the industry.

Definition

ChEBI: 2-Phenylpropionaldehyde dimethyl acetal is a member of benzenes.

Preparation

By catalytic hydrogenation of cinnamyl aldehyde dimethyl acetal in the presence of colloidal palladium; or from 2-phenylpropionaldehyde and a methanolic solution of HCl.

Taste threshold values

Taste characteristics at 25 ppm: fruity, green and floral.

Synthesis Reference(s)

Tetrahedron Letters, 30, p. 5309, 1989 DOI: 10.1016/S0040-4039(01)93772-4

Flammability and Explosibility

Not classified

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