Tetrahydrolinalool

Product Name:

Tetrahydrolinalool

Synonyms:

TETRAHYDROLINALOOL WITH GC;3,7-DIMETHYL-3-OCTANOL, 97+%;[R,(+)]-3,7-Dimethyl-3-octanol;Four hydrogen aroMatic caMphors alcohol;Tetrahydrolinalool 3,7-Dimethyl-3-octanol;Tetrahydrolilool;TETRAHYDROLINALOOL;3-OCTANOL, 3,7-DIMETHYL

CAS:

78-69-3

MF:

C10H22O

MW:

158.28

EINECS:

201-133-9

Product Categories:

Alphabetical Listings;Flavors and Fragrances;Q-Z

Mol File:

78-69-3.mol

Melting point 

-1.53°C (estimate)

Boiling point 

71-73 °C6 mm Hg(lit.)

density 

0.826 g/mL at 25 °C(lit.)

FEMA 

3060 | TETRAHYDROLINALOOL

refractive index 

n20/D 1.434(lit.)

Fp 

169 °F

form 

Liquid

pka

15.34±0.29(Predicted)

Specific Gravity

0.826

color 

Clear colorless

JECFA Number

357

InChIKey

DLHQZZUEERVIGQ-UHFFFAOYSA-N

CAS DataBase Reference

78-69-3(CAS DataBase Reference)

NIST Chemistry Reference

3,7-Dimethyl-3-octanol(78-69-3)

EPA Substance Registry System

3-Octanol, 3,7-dimethyl- (78-69-3)

Hazard Codes 

Xi

Risk Statements 

36/37/38-36/38

Safety Statements 

26-36-37/39

RIDADR 

NA 1993 / PGIII

WGK Germany 

1

RTECS 

RH0905000

HS Code 

29051990

Chemical Properties

Tetrahydrolinalool is a constituent of honey aroma. It is a colorless liquid with a linalool-like odor that is slightly fresher but distinctly weaker than that of linalool. Tetrahydrolinalool is prepared by catalytic hydrogenation of linalool and is used as a substitute for the less stable linalool in perfuming aggressive media.

Chemical Properties

Tetrahydrolinalool has a sweet, oily, floral odor (more so than linalool) with a citrus floral taste.

Chemical Properties

Clear colorless liquid

Uses

Perfumery, flavoring.

Preparation

By hydrogenation of dl-linalool in the presence of palladium black according to Barbier and Lacquin; also from magnesium ethyl bromide and isoamylketone, or by hydrogenation of 2,6-dimethyl-2-octen-6-ol in the presence of nickel at 100°C; optically active and racemic forms are expected because of the structure of this product.

Definition

ChEBI: A fatty alcohol that is 3-octanol substituted by methyl groups at positions 3 and 7. Metabolite observed in cancer metabolism.

Aroma threshold values

Aroma characteristics at 1%: floral linalool-like with a fatty citrus rind and tea-like nuance.

Taste threshold values

Taste characteristics at 1 to 15 ppm: clean and fresh, floral, tea-like with citrus and herbal nuances.

Raw materials

Linalool-->Ethylmagnesium chloride-->TRANS-2-OCTENE