Octahydro-4,4,7-trimethyl-3H-naphth[1,8a-b]oxiren-7-ol (CAS 68845-01-02) — Woody Middle to base Note Fragrance Ingredient
Octahydro-4,4,7-trimethyl-3H-naphth[1,8a-b]oxiren-7-ol
CAS 68845-01-02
What Is Octahydro-4,4,7-trimethyl-3H-naphth[1,8a-b]oxiren-7-ol?
Octahydro-4,4,7-trimethyl-3H-naphth[1,8a-b]oxiren-7-ol is a synthetic fragrance ingredient used in modern perfumery. It appears in niche and avant-garde fragrances seeking unusual woody-ambery effects. This molecule matters because it represents perfumery’s push toward novel synthetic structures that expand creative possibilities beyond natural materials.
Safety Profile
USE WITH AWARENESSWhat Does Octahydro-4,4,7-trimethyl-3H-naphth[1,8a-b]oxiren-7-ol Smell Like?
This synthetic molecule delivers a complex interplay of dry woody facets with subtle ambery undertones. Initially presenting a crisp, almost camphoraceous top note, it evolves into a heart of weathered driftwood and faintly resinous character. The dry-down reveals surprising tenacity, leaving traces of smoked vanilla and mineralic musk. Imagine the scent of sun-baked stones near a cedar forest, with a whisper of antique parchment.
Chemistry, Properties & Perfumer Guide
The Chemistry
Octahydro-4,4,7-trimethyl-3H-naphth[1,8a-b]oxiren-7-ol belongs to the class of oxygenated polycyclic compounds. Its structure features a naphthalene core with an epoxy bridge and hydroxyl group, creating unique stereochemical constraints. Synthesized through Diels-Alder reactions followed by selective oxidation, this molecule demonstrates how strategic oxygenation of polycyclic hydrocarbons can yield novel odor profiles. The epoxy group contributes to its distinctive mineralic character.
Physical & Chemical Properties
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Used as woody-ambery modifier |
| Functional Fragrances | 0.1-0.5% | Up to 1% | For dry woody effects |
Classic Accords
Tip: Use sparingly in woody bases to add mineralic complexity without overwhelming the blend.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No specific IFRA restrictions currently apply to this material.
RIFM Assessment
Not currently evaluated by RIFM – recommended for professional use only.
Sustainability
As a synthetic material, this compound avoids natural resource depletion but requires energy-intensive synthesis. Its environmental impact depends on manufacturing processes and waste management. Being relatively new, its biodegradation profile requires further study.
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