THUJONE Property

Melting point:

170 °C

alpha 

D15 +72.5°

Boiling point:

84-86 °C17 mm Hg(lit.)

Density 

0.925 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.455(lit.)

Flash point:

148 °F

storage temp. 

2-8°C

solubility 

Practically insoluble in water, soluble in alcohol and oils.

form 

Almost colourless mobile liquid

Odor

herbal warm

Dielectric constant

10.0（0℃）

Safety

Hazard Codes 

T

Risk Statements 

23/24/25-36/37/38-42/43

Safety Statements 

23-26-36/37/39-45

RIDADR 

UN 2810 6.1/PG 3

WGK Germany 

3

Toxicity

LD50 s.c. in mice: 442.2 mg/kg (Rice, Wilson)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

P501Dispose of contents/container to..…

THUJONE Chemical Properties,Usage,Production

Chemical Properties

Powerful and penetrating, warm-herbaceous, the minty-camphoraceous odour of moderate to poor tenacity. Warm-herbaceous, bitter taste in concentrations lower than 10 ppm. Higher concentrations produce a pungent-bitter, herbaceous taste.

Uses

β-Thujone is a component of the essential oil of Pistacia vera L. It is also used as as a reactant in organic synthesis.

Definition

ChEBI: (+)-beta-thujone is a beta-thujone. It is an enantiomer of a (-)-beta-thujone.

Definition

The monoterpenoid ketone Thujone is used sparingly in certain perfume formulations, often as a trace component of topnote compositions, and it blends very well with Oakmoss, Rosemary, Geranium, Galbanum and various green-herbaceous notes, and with certain Ambre-t ype fragrances. Herbs containing essential oils in which Thujone forms a major component have been under suspicion by the food authorities, and many products containing Thujone-beaning oils or extracts have been banned from food, beverages, etc. The toxicity of Thujone is roughly estimated at three times that of Nitrobenzene. However, it is not possible to compare the two since the effect of Thujone is entirely different, sometimes classified as “Curare-like” or paralyzing on the human CNS or heart system. The Thujone content of certain Artemisia species, used in “Absinth” alcoholic beverages, was responsible for banning certain brands of alcoholic beverages in the 1930s in France. Thujone is by some authorities considered the most toxic of all commonly occurring components of essential oils. Thujone is produced by isolation from various essential oils: Cedarleaf oil (Thuja oil), Tansy oil, Dalmatian Sage oil, etc.