3,4,5,6-TETRAHYDROPSEUDOIONONE Property

Boiling point:

130-132 °C(Press: 11 Torr)

Density 

0.838±0.06 g/cm3(Predicted)

vapor pressure 

0.6Pa at 20℃

FEMA 

3059 | 3,4,5,6-TETRAHYDROPSEUDOIONONE

solubility 

Practically insoluble in water, soluble in alcohol and oils.

form 

oily liquid

Specific Gravity

0.87

color 

Pale straw-colored or almost colorless

Odor

at 100.00 %. sweet floral balsam rose woody

Odor Type

floral

JECFA Number

1121

LogP

4.6 at 35℃

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..…

3,4,5,6-TETRAHYDROPSEUDOIONONE Chemical Properties,Usage,Production

Chemical Properties

Tetrahydro-pseudo-ionone has a sweet, floral, balsamic odor with a rose to woody quality. It has a sweet, fruity flavor, somewhat apple- and peach-like.

Uses

6,10-Dimethylundec-9-en-2-one finds some use in Rose compositions, where its peculiar oily softness lends very pleasant and natural notes, and also supPorts mildly green notes in the composition. It blends furthermore excellently with Vetiver and Labdanum, musks and Lavender products, and it can justly be classified as a very versatile perfume chemical. It is used in small amounts in berry flavors, fruit complexes, etc. at the rate of 1 to 15 ppm in the functional consumer products.

Preparation

By hydrogenation of pseudo-ionone with colloidal palladium; this reaction leads to a product with considerable mixture; also from linalool plus acetic anhydride and sodium ethoxide, followed by hydrogenation; another method starts with geraniol via the acid chloride.

Definition

ChEBI: 6,10-Dimethylundec-9-en-2-one is a monoterpenoid.