Amyris oil, acetylated (CAS 68916-14-3) — Woody Base Note Fragrance Ingredient
Amyris oil, acetylated
CAS 68916-14-3
What Is Amyris oil, acetylated?
Acetylated amyris oil is a modified version of natural amyris oil, used as a fragrance ingredient in perfumes and scented products. It’s created through a chemical process that enhances its woody characteristics. This ingredient matters because it provides perfumers with a more stable and versatile woody note compared to natural amyris oil, allowing for longer-lasting scents in fine fragrances and personal care products.
Safety Profile
USE WITH AWARENESSWhat Does Amyris oil, acetylated Smell Like?
Acetylated amyris oil presents a rich, woody aroma with enhanced depth and tenacity compared to its natural counterpart. The scent evolves from an initial crisp, slightly camphoraceous top note to a heart of warm, balsamic woodiness reminiscent of fine sandalwood. Its dry-down reveals a smooth, creamy character with subtle vanilla-like sweetness, making it particularly valuable in oriental and woody compositions where longevity is desired.
Chemistry, Properties & Perfumer Guide
The Chemistry
Acetylated amyris oil is produced by esterifying natural amyris oil with acetic anhydride. This process modifies the sesquiterpene alcohols present in the oil, primarily converting β-eudesmol and elemol into their corresponding acetate esters. The acetylation increases molecular weight and reduces volatility, resulting in a more stable fragrance material with enhanced woody characteristics. The synthetic modification allows for greater consistency in fragrance formulations compared to variable natural amyris oil.
Physical & Chemical Properties
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | Up to 5% | Woody base note |
| Soap | 0.5-1% | Up to 2% | Stable woody note |
| Candles | 2-4% | Up to 6% | Long-lasting woody character |
Classic Accords
Tip: Use to extend and enhance natural woody notes while adding subtle balsamic sweetness.
Alternatives & Comparisons
Similar woody-balsamic profile with more pronounced sandalwood character.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No IFRA restrictions currently apply to acetylated amyris oil.
RIFM Assessment
RIFM has reviewed acetylated amyris oil and found it safe for current fragrance use levels.
Sustainability
While derived from a natural source, the acetylation process makes this a semi-synthetic material. The sustainability depends on responsible sourcing of the original amyris oil, which comes from the tropical Amyris balsamifera tree. Some producers implement reforestation programs to ensure long-term supply.
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Ingredient Data Sheet
CAS 68916-14-3Physical data: PubChem (NIH/NLM), U.S. EPA CompTox Dashboard, EPA OPERA models, RDKit. Odor & flavor: Arctander (Perfume & Flavor Chemicals), Fenaroli's Handbook of Flavor Ingredients, Leffingwell. Thresholds: van Gemert (Compilations of Odour Threshold Values). Regulatory: IFRA Standards 51st, FEMA GRAS. Trade names: Surburg (Common Fragrance & Flavor Materials). All data compiled and cross-referenced for perfumertools.com.
