Myrtenyl acetate (CAS 1079-01-02) — Woody Middle Note Fragrance Ingredient
Myrtenyl acetate
CAS 1079-01-02
What Is Myrtenyl acetate?
Myrtenyl acetate is a synthetic fragrance ingredient with a fresh, pine-like aroma. It’s commonly used in air fresheners and masculine colognes for its crisp, outdoorsy character. This molecule adds natural complexity to woody and herbal fragrances. Its subtle fruity undertones make it versatile for both personal care and home fragrance applications.
Safety Profile
GENERALLY SAFEWhat Does Myrtenyl acetate Smell Like?
Myrtenyl acetate opens with a brisk, camphoraceous pine note reminiscent of fresh mountain air, quickly revealing a subtle fruity sweetness akin to crushed juniper berries. The heart develops herbal complexity with hints of rosemary and eucalyptus, while the dry-down leaves a clean, woody trail with faint balsamic undertones. Its odor profile bridges the gap between sharp coniferous notes and softer floral-fruity accords, making it invaluable for creating naturalistic forest impressions without overpowering compositions.
Chemistry, Properties & Perfumer Guide
The Chemistry
Myrtenyl acetate is an ester derived from myrtenol, belonging to the monoterpenoid class. While found in trace amounts in some coniferous essential oils, commercial production typically involves the acetylation of myrtenol derived from pinene. The synthesis route often begins with α-pinene oxidation, followed by selective hydrogenation and esterification. The molecule’s bicyclic structure contributes to its distinctive odor profile and moderate volatility. Chirality plays a role in its olfactory characteristics, with different enantiomers exhibiting varying scent profiles.
Physical & Chemical Properties
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Adds woody-herbal complexity |
| Functional Fragrance | 1-3% | Up to 8% | Air fresheners and detergents |
| Personal Care | 0.2-1% | Up to 3% | Shower gels and deodorants |
Classic Accords
Tip: Use as a bridge between citrus top notes and woody base notes to enhance naturalness.
Alternatives & Comparisons
Similar pine character but with more pronounced resinous notes, suitable for deeper woody compositions.
Offers comparable coniferous notes with stronger balsamic undertones, ideal for pine-forward fragrances.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No IFRA restrictions apply to myrtenyl acetate.
RIFM Assessment
RIFM has evaluated myrtenyl acetate as safe for current fragrance use levels.
Sustainability
As a synthetic material, myrtenyl acetate production doesn’t rely on natural resource extraction. Modern synthesis routes from pinene derivatives offer good atom economy. The material’s stability and moderate volatility contribute to lower environmental impact compared to more volatile terpenes. Being produced in controlled industrial settings allows for consistent quality with minimal batch variation.
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