P-METHYLPHENYLACETALDEHYDE Property

Melting point:

40°C

Boiling point:

221.5°C (estimate)

Density 

1.0052

refractive index 

1.5255 (estimate)

FEMA 

3071 | P-TOLYLACETALDEHYDE

storage temp. 

2-8°C

Odor

at 10.00 % in dipropylene glycol. fresh sweet green cortex lilac narcissus nutty phenolic fruity cherry

Odor Type

green

JECFA Number

1023

LogP

2.24

EPA Substance Registry System

Benzeneacetaldehyde, 4-methyl- (104-09-6)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H317May cause an allergic skin reaction

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P321Specific treatment (see … on this label).

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

P-METHYLPHENYLACETALDEHYDE Chemical Properties,Usage,Production

Chemical Properties

p-Tolylacetaldehyde has a characteristic green fruity odor reminiscent of sweet floral and forest-like and a corresponding flavor.

Uses

4-Methylphenylacetaldehyde (p-Tolylacetaldehyde) is used in perfumes, e.g., in soap, in tobacco fragrances, in the preparation of pesticides, etc.

Preparation

From p-methylbenzaldehyde; also from p-methylbenzyl chloride and hexamethylene tetramine.The methods of preparation correspond closely to those of phenylacetaldehyde. Thus, the compound can be prepared by glycidic ester synthesis from 4-methylbenzaldehyde and chloroacetate ester, by hydroformylation of 4-methylbenzylhalide with Co₂(CO)₈Na₂CO₃ in acetonitrile, or by oxidation of 4-methylstyrene.

Definition

ChEBI: (4-Methylphenyl)acetaldehyde is a member of phenylacetaldehydes.

Taste threshold values

Taste characteristics at 10 ppm: sweet, fruity cherry with spicy an nutty nuances.

Synthesis Reference(s)

Synthetic Communications, 17, p. 677, 1987 DOI: 10.1080/00397918708075741