Tea Tree Oil
Naturals Heart Note CAS 68647-73-4
A fresh terpenic note with a citrus character and a soft nutmeg facet. Spicy and natural, it adds a medicinal tea tree lift to compositions.
Odor profile
| Note | Heart Note |
| Descriptor 1 | Herbal |
| Descriptor 2 | Camphoraceous |
| Descriptor 3 | Minty |
| Odor Impact1 | 180 |
| Impact Level | Medium |
| Tenacity1 | 23 h |
| Tenacity2 | 44 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 | 68647-73-4 |
| INCI Name | Melaleuca alternifolia leaf oil |
| Category | Naturals |
Synonyms
melasol (melaleuca alternifolia), melaleuca alternifolia, myrtaceae, tea tree EO, tea tree ess. oil (for fragrance) (Robertet), tea tree essential oil, tea tree oil australia organic, tea tree oil natural, tea tree oil organic, teatree oil, ti tree oil (melaleuca alternifolia), ti-trol (melaleuca alternifolia), melaleuca alternifolia leaf oil
Physical and chemical data
| Flash Point | 50.00 °C |
| Density | 0.88800 |
| Refractive Index | 1.47500 |
| Solubility | alcohol; fixed oils; paraffin oil |
| Appearance | pale yellow to yellow clear liquid |
Regulatory status
Restricted components
| Component | Share |
|---|---|
| Estragole | 0.1 % |
| Geraniol | 0.1 % |
| Methyl Eugenol | 0.04 % |
| P-Anisyl alcohol | 0.01 % |
| Benzyl Alcohol | 0.01 % |
| Cinnamaldehyde | 0.01 % |
| Eugenol | 0.01 % |
| Anisyl Alcohol (o-,m-,p-) | 0.01 % |
IFRA regulated substances declared for this material. For naturals — which are mixtures of many molecules — the interactive index derives the effective maximum concentration per category from them. On single molecules these shares are purity traces from the supplier specification; they are far too small to limit use and are therefore not counted.
EU allergen declaration
| Substance | Share |
|---|---|
| Geraniol | 0.1 % |
| Anise alcohol | 0.01 % |
| Benzyl alcohol | 0.01 % |
| Cinnamal | 0.01 % |
| Eugenol | 0.01 % |
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.