Hexa-2,4-dienylisobutyrat Property

Boiling point:

237.18°C (rough estimate)

Density 

0.9607 (rough estimate)

refractive index 

1.4480 (estimate)

FEMA 

4134 | 2,4-HEXADIENYL ISOBUTYRATE

solubility 

Almost insoluble in water, soluble in alcohol and oils.

color 

Colorless or very pale straw-colored liquid

Odor

Oily-sweet, fruity-green, Apple- and Galbarium-like odor with more sweetness and fruitiness than Galbanum

Odor Type

green

JECFA Number

1782

LogP

2.79

EPA Substance Registry System

2,4-Hexadienyl isobutyrate (16491-24-0)

Safety

Hazard Codes 

N

Risk Statements 

50

Safety Statements 

61

Toxicity

rabbit,LD50,skin,> 5gm/kg (5000mg/kg),Food and Chemical Toxicology. Vol. 26, Pg. 339, 1988.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

Hexa-2,4-dienylisobutyrat Chemical Properties,Usage,Production

Chemical Properties

Light yellow liquid; sweet, pineapple aroma with cinnamon undertones

Uses

Hexa-2,4-dienylisobutyrat could undoubtedly be used as part of the topnote complex in many fragrance types, not only the floral and fruity ones. In Fougere types, rich in herbaceous notes, it can give quite interesting effects with or without the support of Oakrnoss. The Acetal is used in minute amounts in imitation fruit flavors, e. g. Melon, and in Mushroom flavors, etc. The concentration is about 0.1 to 1.0 ppm in the finished product.

Aroma threshold values

Medium strength odor; fresh type

Synthesis

Hexa-2,4-dienylisobutyrat is produced from Heptaldehyde and Methanol with a dehydrating agent.