(-)-alpha-Terpineol Chemical Properties

Melting point:

31-35 °C(lit.)

Boiling point:

217-218 °C(lit.)

Density 

0.93 g/mL at 25 °C(lit.)

vapor pressure 

2.79Pa at 20℃

refractive index 

n20/D 1.482(lit.)

FEMA 

3045 | ALPHA-TERPINEOL

Flash point:

193 °F

storage temp. 

Store below +30°C.

solubility 

Chloroform (Sparingly), Methanol (Slightly)

form 

Solid

pka

15.09±0.29(Predicted)

color 

Colourless to Off-White Oil

Specific Gravity

0.934 (20/4℃)

Odor

at 100.00 %. lilac floral terpenic

Odor Type

terpenic

Water Solubility 

2.23g/L at 20℃

BRN 

2325137

LogP

2.25 at 20℃

CAS DataBase Reference

10482-56-1(CAS DataBase Reference)

NIST Chemistry Reference

a-Terpineol(10482-56-1)

EPA Substance Registry System

1-.alpha.-Terpineol (10482-56-1)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-36/37/39

RIDADR 

UN1230 - class 3 - PG 2 - Methanol, solution

WGK Germany 

2

RTECS 

WZ6700000

HS Code 

2906 19 00

Hazardous Substances Data

10482-56-1(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: 4300 mg/kg LD50 dermal Rat > 5000 mg/kg

MSDS

• Language:English Provider:(-)-alpha-Terpineol
• Language:English Provider:SigmaAldrich

(-)-alpha-Terpineol Usage And Synthesis

Uses

(S)-α-Terpineol comes from the essential oil extracted from the leaves of Zanthoxylum ailanthoides Sieb. Et Zucc. collected from Guizhou which possesses anti-oxidant activities.

Definition

ChEBI: The (S)-enantiomer of alpha-terpineol.

Synthesis Reference(s)

Journal of the American Chemical Society, 102, p. 7798, 1980 DOI: 10.1021/ja00546a037
Tetrahedron Letters, 35, p. 61, 1994 DOI: 10.1016/0040-4039(94)88162-6
The Journal of Organic Chemistry, 54, p. 4481, 1989 DOI: 10.1021/jo00280a002

General Description

α-Terpineol is a monoterpene alcohol. It is one of the components responsible for the antifungal activity of Melaleuca alternifolia (tea tree) essential oil. It is also found in Origanum essential oil and Rosmarinus officinalis essential oil.

Flammability and Explosibility

Not classified

Toxics Screening Level

The initial threshold screening level (ITSL) for alpha-terpineol (CAS #10482-56-1) is 0.1 μg/m3 annual averaging time.

(-)-alpha-Terpineol(10482-56-1)Related Product Information

• Thiophanate-methyl
• α-Lipoic Acid
• METSULFURON METHYL
• 1-Propanol
• Oleyl alcohol
• 2-Methyl-1-propanol
• Tribenuron methyl
• Methyl salicylate
• Kresoxim-methyl
• Methyl acetate
• Diethylstilbestrol
• Dihydro-alpha-terpineol
• Methyl
• Triptolide
• DELTA-8-THC
• ALPHA-TERPINEOL-D3,ALPHA-TERPINEOL (PROPYL METHYL-D3),ALPHA-TERPINEOL-D3 (PROPYL METHYL-D3)
• Methyl bromide
• Triptonide