Ocimene
Aroma Chemical Top Note CAS 13877-91-3
Light, fresh terpene green with a citrusy, herbaceous character and a soft tropical fruit nuance. Diffusive and natural, it lifts citrus, lavender and green floral accords.
Odor profile
| Note | Top Note |
| Descriptor 1 | Herbal |
| Descriptor 2 | Metallic |
| Descriptor 3 | Citrus |
| Odor Impact1 | 500 |
| Impact Level | Medium |
| Tenacity1 | 1.5 h |
| Tenacity2 | 4 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Both tenacity figures are blotter life. The two labs use different evaluation protocols, so the numbers are not directly comparable — read them as two independent readings, not as a contradiction.
Identification
| CAS Number | 13877-91-3 |
| INCI Name | Ocimene |
| Category | Aroma Chemical |
| Formula | C10H16 |
| Mol. Weight | 136.23 |
| IUPAC Name | 3,7-dimethylocta-1,3,6-triene |
| InChIKey | IHPKGUQCSIINRJ-UHFFFAOYSA-N |
Synonyms
3,7-Dimethyl-1,3,6-octatriene, 1,2,6-Octatriene, 3,7-dimethyl, Ocimene PQ, 3,7-dimethyl octa-1,3,6-triene, beta-3,7-dimethyl-1,3,6-octatriene, 3,7-dimethyl-1,3,6-octatriene (cis-beta 30%), 3,7-dimethyl-1,3,6-octatriene (cis-beta 70%), 3,7-dimethyl-1,3,6-octatriene natural, 3,7-dimethylocta-1,3,6-triene, ocimene (natural), ocimene argentina, natural isolated constituent, ocimene natural, 1,3,6-octatriene, 3,7-dimethyl-, cis-ocimene (ex petitgrain bigaradier)
Physical and chemical data
| Boiling Point | 176.00 °C |
| Flash Point | 61.67 °C |
| Density | 0.801 |
| Refractive Index | 1.478 |
| Vapor Pressure | 1.559000 mmHg @ 25.00 C. (est) |
| LogP | 4.3 |
| Solubility | Insoluble in water; soluble in oils |
| Appearance | Colourless to straw-coloured mobile liquid; warm herbaceous aroma |
Regulatory status
Restricted components
| Component | Share |
|---|---|
| D-Limonene | 1 % |
| Linalool | 0.022 % |
IFRA regulated substances contained in this material. The interactive index derives the effective maximum concentration per category from them.
EU allergen declaration
| Substance | Share |
|---|---|
| Limonene | 1 % |
| Pinene | 0.13 % |
| Terpinolene | 0.096 % |
| alpha-Terpinene | 0.08 % |
| Linalool | 0.022 % |
Substances that must be named in the ingredient list under Annex III of Regulation (EC) 1223/2009, as amended by Regulation (EU) 2023/1545. Where a range was given, the upper bound is shown.
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.