2,10-Epoxypinane (CAS 6931-54-0) — Woody Top to Middle Note Fragrance Ingredient
2,10-Epoxypinane
CAS 6931-54-0
What Is 2,10-Epoxypinane?
2,10-Epoxypinane is a synthetic fragrance ingredient used in modern perfumery to add woody, pine-like nuances. It’s found in air fresheners and masculine colognes. This molecule matters because it provides a clean, outdoorsy character without the harshness of some natural pine extracts.
Safety Profile
GENERALLY SAFEWhat Does 2,10-Epoxypinane Smell Like?
2,10-Epoxypinane opens with a crisp, camphoraceous pine note reminiscent of alpine forests after rain. The heart reveals smoother woody facets with a subtle eucalyptus-like freshness. Dry-down is clean and slightly resinous, leaving a transparent woody trail. Compared to pinene, it’s less aggressive and more versatile in blends.
Chemistry, Properties & Perfumer Guide
The Chemistry
2,10-Epoxypinane is an epoxidized pinane derivative belonging to the bicyclic monoterpenoid class. Synthesized through epoxidation of pinane precursors, this molecule lacks natural occurrence. The epoxide group adds polarity compared to pinene, modifying both odor profile and solubility characteristics. Its rigid bicyclic structure contributes to good stability in formulations.
Physical & Chemical Properties
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | Up to 5% | Woody modifier |
| Functional Fragrance | 0.5-2% | Up to 3% | Clean pine effect |
Classic Accords
Tip: Use to soften harsh woody notes while maintaining projection.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No IFRA restrictions currently apply.
RIFM Assessment
Not currently evaluated by RIFM.
Sustainability
As a synthetic material, 2,10-Epoxypinane offers consistent quality without natural resource depletion. Production typically uses petrochemical feedstocks, though bio-based routes may be possible from pinene precursors. Lower volatility than pinene reduces environmental dispersion.
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