4-METHYL-2-PHENYL-2-PENTENAL Chemical Properties

Boiling point:

96 °C0.7 mm Hg(lit.)

Density 

0.983 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.536(lit.)

FEMA 

3200 | 4-METHYL-2-PHENYL-2-PENTENAL

Flash point:

>230 °F

Odor

at 100.00 %. sweet cocoa nutty rose powdery

Odor Type

chocolate

Sensitive 

Air Sensitive

JECFA Number

1473

BRN 

2042583

LogP

3.55

CAS DataBase Reference

26643-91-4(CAS DataBase Reference)

EPA Substance Registry System

Benzeneacetaldehyde, .alpha.-(2-methylpropylidene)- (26643-91-4)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

TSCA 

Yes

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

4-METHYL-2-PHENYL-2-PENTENAL Usage And Synthesis

Description

4-Methyl-2-phenyl-2-pentenal has a cocoa aroma. It is often used in chocolate and cocoα-type flavors. May be prepared by aldolic condensation of the corresponding aldehydes in the presence of a basic catalyst.

Chemical Properties

4-Methyl-2-phenyl-2-pentenal has a cocoa aroma. It is often used in chocolate and cocoa-type flavors.

Occurrence

Reported found in baked and fried potato, peppermint oil, cocoa, black tea, roasted filberts, potato chips, sesame seed and malt

Preparation

By aldolic condensation of the corresponding aldehydes in the presence of a basic catalyst

Taste threshold values

Taste characteristics at 20 ppm: floral, sweet, waxy and cocoa-like with a honey nuance

4-METHYL-2-PHENYL-2-PENTENAL(26643-91-4)Related Product Information

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