Isolongifolene
Synonym(s):(1R)-2,2,7,7-Tetramethyltricyclo[6.2.1.01.6]undec-5-ene
- CAS NO.：1135-66-6
- Empirical Formula: C15H24
- Molecular Weight: 204.35
- MDL number: MFCD00042616
- EINECS: 214-494-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-27 19:03:18
What is Isolongifolene?
The Uses of Isolongifolene
(-)-Isolongifolene may be used in the preparation of (-)-isolongifolenone, a potent insect repellent.
What are the applications of Application
(?)-Isolongifolene is a useful chemical in which the double bond can be epoxidized
General Description
(-)-Isolongifolene is a sesquiterpene that can be found in pine cone and Japanese cedar essential oils.
Flammability and Explosibility
Flammable
Purification Methods
Reflux it over, and distil it from Na. [Zeiss & Arakawa J Am Chem Soc 76 1653 1954, IR: Reinaecker & Graafe Angew Chem, Int Ed Engl 97 348 1985, UV and NMR: Ranganathan et al. Tetrahedron 26 621 1970, Beilstein 5 IV 1191.]
Properties of Isolongifolene
| Boiling point: | 255-256 °C |
| Density | 0.930 g/mL at 20 °C(lit.) |
| vapor pressure | 5.49Pa at 25℃ |
| refractive index | n |
| Flash point: | 49°C |
| storage temp. | 2-8°C |
| solubility | DMSO: 10 mg/mL (48.94 mM) |
| form | Liquid |
| color | Colorless to light yellow |
| Odor | at 100.00 %. woody dusty amber incense |
| optical activity | [α]20/D 138±2°, c = 1% in ethanol |
| Water Solubility | 59.998μg/L at 25℃ |
| BRN | 2207559 |
| CAS DataBase Reference | 1135-66-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 2H-2,4a-methanonaphthalene, 1,3,4,5,6,7-hexahydro-1,1,5,5-tetramethyl-, (2s)-(1135-66-6) |
| EPA Substance Registry System | 2H-2,4a-Methanonaphthalene, 1,3,4,5,6,7-hexahydro-1,1,5,5-tetramethyl-, (2S,4aR)- (1135-66-6) |
Safety information for Isolongifolene
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H225:Flammable liquids H370:Specific target organ toxicity, single exposure |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for Isolongifolene
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