Stearoptenes (CAS 1406-57-1) — Woody Base Note Fragrance Ingredient
Stearoptenes
CAS 1406-57-1
What Is Stearoptenes?
Stearoptenes are waxy compounds found in essential oils, particularly in lavender and chamomile. They contribute to the solid fraction of these oils and are often responsible for their characteristic textures. These compounds matter because they influence the longevity and texture of fragrances, providing subtle background notes that enhance overall scent profiles.
Safety Profile
GENERALLY SAFEWhat Does Stearoptenes Smell Like?
Stearoptenes have a subtle, waxy aroma with faint herbal undertones. They are not overpowering but provide a soft, grounding base that enhances other notes. Over time, they release a gentle, slightly sweet scent that blends seamlessly with floral and woody accords, adding depth without dominance.
Chemistry, Properties & Perfumer Guide
The Chemistry
Stearoptenes are a mixture of waxy compounds, primarily triterpenes and sesquiterpenes, found in the solid fraction of essential oils. They are typically isolated through cold fractionation of oils. These compounds are non-volatile and contribute to the physical properties of oils rather than their scent profiles.
Physical & Chemical Properties
| Melting Point | 40-60 °C |
|---|---|
| Solubility | Insoluble in water, soluble in ethanol |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | Up to 5% | Adds texture and longevity |
| Aromatherapy | 2-5% | Up to 10% | Enhances stability of blends |
Classic Accords
Tip: Use stearoptenes to add texture and longevity to natural fragrance blends.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No restrictions under IFRA standards.
RIFM Assessment
RIFM has no specific safety concerns for stearoptenes when used in standard concentrations.
Sustainability
Stearoptenes are typically derived as byproducts of essential oil production, making their use sustainable. Synthetic alternatives are less common but can be produced if natural sources are limited.
Explore Stearoptenes
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References
- PubChem Stearoptenes PubChem
- Essential Oil Chemistry ScienceDirect
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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