| Identification | More | [Name]
Terpinolene | [CAS]
586-62-9 | [Synonyms]
1，4(8)-p-Menthadiene
1-methyl-4-(1-methylethylidene)cyclohexene
1-METHYL-4-ISO-PROPYLIDENECYCLOHEXENE
1-Methyl-4-propan-2-ylidene-cyclohexene
4-ISOPROPYLIDENE-1-METHYLCYCLOHEXENE
ALPHA-TERPINOLENE
DIPENTENE FLUKA
FEMA 3046
P-MENTH-1,4(8)-DIENE
TERPINOLEN
TERPINOLENE
TERPINOLENE 20
TERPINOLENE 90
1,4(8)-terpadiene
1-Methyl-4-(1-methylethylidene)-1-cyclohexene
1-methyl-4-(1-methylethylidene)-cyclohexen
1-methyl-4-(1-methylethylidene)-cyclohexene (alpha-terpinolene)
1-methyl-4-isopropylidene-1-cyclohexene
3-methyl-6-(1-methylethylidene)-cyclohexen
alpha-Terpinolen | [EINECS(EC#)]
205-341-0 | [Molecular Formula]
C10H16 | [MDL Number]
MFCD00049191 | [Molecular Weight]
136.23 | [MOL File]
586-62-9.mol |
| Chemical Properties | Back Directory | [Melting point ]
<25 °C | [Boiling point ]
184-185 °C (lit.) | [density ]
0.861 g/mL at 25 °C(lit.)
| [vapor density ]
~4.7 (vs air)
| [vapor pressure ]
~0.5 mm Hg ( 20 °C)
| [FEMA ]
3046 | [refractive index ]
n20/D 1.489(lit.)
| [Fp ]
148 °F
| [storage temp. ]
2-8°C
| [solubility ]
Chloroform: Slightly Soluble; Methanol: Slightly Soluble | [form ]
clear liquid | [color ]
Colourless or pale straw-coloured liquid. | [Specific Gravity]
0.84 | [Odor]
at 10.00 % in dipropylene glycol. fresh woody sweet pine citrus | [Odor Type]
herbal | [Water Solubility ]
6.812mg/L(25 ºC) | [JECFA Number]
1331 | [BRN ]
1851203 | [Dielectric constant]
2.3（Ambient） | [Stability:]
Light Sensitive | [InChIKey]
MOYAFQVGZZPNRA-UHFFFAOYSA-N | [LogP]
4.33-4.38 at 20-37℃ | [Uses]
Solvent for resins, essential oils; manufacture
of synthetic resins, synthetic flavors. | [CAS DataBase Reference]
586-62-9(CAS DataBase Reference) | [NIST Chemistry Reference]
Cyclohexene, 1-methyl-4-(1-methylethylidene)-(586-62-9) | [EPA Substance Registry System]
586-62-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
N | [Risk Statements ]
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S24/25:Avoid contact with skin and eyes .
S22:Do not breathe dust .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) . | [RIDADR ]
UN 2541 3/PG 3
| [WGK Germany ]
3
| [RTECS ]
WZ6870000
| [F ]
10 | [HazardClass ]
3.2 | [PackingGroup ]
III | [HS Code ]
29021990 | [Safety Profile]
Mildly toxic by ingestion. A very dangerous fire hazard when exposed to heat or flame. To fight fire, use foam, CO2, dry chemical. Can react with oxidning materials. When heated to decomposition it emits acrid smoke and irritating fumes. | [Hazardous Substances Data]
586-62-9(Hazardous Substances Data) | [Toxicity]
The acute oral LD50 value in rats was reported as 4.39 ml/kg (Levenstein, 1975) and similarly that in mice and rats was reported to be 4.4 ml/kg (Hisamitsu Pharmaceutical Co., Inc., 1973). The acute dermal LD50 value in rabbits exceeded 5 g/kg (Levenstein, 1975). |
| Hazard Information | Back Directory | [General Description]
A water-white to light amber colored liquid. Insoluble in water and less dense than water. Flash point 99°F. Used to make plastics and resins. | [Reactivity Profile]
TERPINOLENE(586-62-9) may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions. | [Air & Water Reactions]
Highly flammable. Insoluble in water. | [Health Hazard]
Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution. | [Chemical Properties]
Colorless liquid | [Chemical Properties]
Terpinolene has a pleasant sweet-piney odor with a somewhat sweet, citrus flavor. | [Occurrence]
Reported found in citrus juices and oils, black currant, guava, papaya, raspberry, various spice and mint oils, tea, passion fruit, litchi, lovage oil, distilled lime peel oil, ginger, nutmeg, pepper, mace, coriander seed, lovage seed, lovage root, myrtle leaf, pimento berry, pimento leaf, winter savory, smaller galanga, Ethiopian or guinea pepper and ashanti pepper. | [Definition]
ChEBI: A p-menthadiene with double bonds at positions 1 and 4(8). | [Preparation]
By alcoholic sulphuric acid treatment of pinene (Arctander, 1969). | [Production Methods]
Terpinolene used to be extracted by fractional distillation of wood turpentine. It is now produced bytreatinga-pinene with aqueous H3PO4 at 75 ℃. It is preferable to distill terpinolene under vacuum to minimize the formation of polymeric products at elevated temperatures. | [Aroma threshold values]
Aroma characteristics at 1%: sweet, fresh, piney citrus with a woody, old lemon peel nuance. | [Taste threshold values]
Taste characteristics at 2 to 25 ppm: woody, terpy, lemon and lime-like with a slight herbal and floral nuance. | [Hazard]
Flammable, moderate fire risk. | [Flammability and Explosibility]
Notclassified | [Pharmacology]
Combinations of terpenes, such as terpinolene, with nonionic surfactants and stabilizers
have been patented for use as gallstone solvents. Human cholesterol calculi heated in mixtures
containing terpinolene and human bile were dissolved within 1-2 hr (Hisamitsu Pharmaceutical Co.,
Inc., 1973). |
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