3,5,5-Trimethylcyclohexanol (CAS 0116-02-09) — Woody Base Note Fragrance Ingredient
3,5,5-Trimethylcyclohexanol
CAS 0116-02-09
What Is 3,5,5-Trimethylcyclohexanol?
3,5,5-Trimethylcyclohexanol is a synthetic fragrance ingredient used to add woody, ambery notes to perfumes. It’s commonly found in fine fragrances and personal care products. This ingredient helps create long-lasting, warm undertones in scents, making it valuable for perfumers aiming for depth and complexity.
Safety Profile
GENERALLY SAFEWhat Does 3,5,5-Trimethylcyclohexanol Smell Like?
3,5,5-Trimethylcyclohexanol offers a rich, woody aroma with subtle amber undertones. It evolves from a crisp initial note to a warm, lingering base, reminiscent of sunbaked cedarwood. The dry-down is smooth and slightly powdery, making it versatile for blending.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used to enhance the woody, leathery accord, adding depth and longevity to the fragrance.
Contributes to the earthy, mineral-like woody notes that define this iconic scent.
Chemistry, Properties & Perfumer Guide
The Chemistry
3,5,5-Trimethylcyclohexanol is a synthetic terpenoid alcohol. It is produced through hydrogenation of isophorone or other cyclohexanone derivatives. The molecule’s structure allows for stability and longevity in fragrance formulations.
Physical & Chemical Properties
| Boiling Point | N/A |
|---|---|
| Density | N/A |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-5% | Up to 10% | Adds woody depth |
| Personal Care | 0.5-2% | Up to 5% | Enhances longevity |
Classic Accords
Tip: Use in base notes to anchor lighter ingredients and extend fragrance longevity.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No restrictions under current IFRA standards.
EU Allergen Declaration
Not listed as an EU allergen.
RIFM Assessment
RIFM has evaluated this ingredient and found it safe for use in current applications.
Sustainability
Synthetic production ensures consistent quality and reduces reliance on natural resources. The process is optimized for minimal environmental impact.
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References
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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