Tricyclodecanyl acetate (CAS 64001-15-6) — Woody Middle Note Fragrance Ingredient
Tricyclodecanyl acetate
CAS 64001-15-6
What Is Tricyclodecanyl acetate?
Tricyclodecanyl acetate is a synthetic fragrance ingredient used in perfumes and scented products to add woody, slightly floral nuances. It’s commonly found in air fresheners, fabric softeners, and some masculine fragrances. This versatile molecule helps perfumers create long-lasting scents with a clean, modern character that bridges traditional woody notes with contemporary synthetics.
Safety Profile
GENERALLY SAFEWhat Does Tricyclodecanyl acetate Smell Like?
Tricyclodecanyl acetate opens with a crisp, dry woodiness reminiscent of freshly sanded cedar planks, gradually revealing subtle floral undertones like the ghost of a violet petal. As it develops, the scent becomes smoother, acquiring a slightly musky, ambery quality that lingers close to the skin. The dry-down is clean and persistent, with a polished wood character that avoids heaviness.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used to enhance the modern woody freshness, contributing to its signature ‘blue’ aquatic character without marine notes.
Provides the clean woody backbone that supports this fragrance’s crisp lavender and sage accord.
2D Molecular Structure
SMILES: CC(=O)OC1CC2CC1C1CCCC21
Chemistry, Properties & Perfumer Guide
The Chemistry
Tricyclodecanyl acetate is a synthetic ester derived from tricyclodecanol. Its rigid tricyclic structure provides excellent stability and longevity in fragrance applications. The acetate group contributes to its moderate volatility, making it useful as a middle note. The molecule’s three-dimensional shape allows it to interact with multiple olfactory receptors, creating its complex woody-floral profile.
Physical & Chemical Properties
| Appearance | Colorless to pale yellow liquid |
|---|---|
| Boiling Point | Approx. 250-260°C |
| Density | ~1.01 g/cm³ |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-5% | Up to 10% | Woody note enhancer |
| Functional Products | 0.5-2% | Up to 5% | Long-lasting freshness |
Classic Accords
Tip: Use with citrus top notes to prevent the woody character from becoming too heavy.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted under current IFRA standards.
RIFM Assessment
Considered safe for current use levels based on RIFM assessment.
Sustainability
As a synthetic material, tricyclodecanyl acetate has consistent quality and doesn’t rely on natural resources. Production can be optimized for minimal waste, though petrochemical sourcing remains an environmental consideration. Its longevity in fragrance reduces the need for reapplication compared to more volatile materials.
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References
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data errorIngredient Data Sheet
CAS 64001-15-6Physical Properties
| Molecular Weight | 194.27 g/mol🔬 PubChem |
| LogP (Octanol-Water) | 2.9🔬 PubChem |
| Boiling Point | 253 °C🔬 EPA CompTox |
| Vapor Pressure | 0.0026 mmHg @ 25°C📊 OPERA |
| Flash Point | 103.8 °C🔬 EPA CompTox |
| Involatility Index | 0.0002💻 Calculated |
| log Kp (skin permeability) | -1.826💻 Calculated |
| SMILES | CC(=O)OC1CC2CC1C3C2CCC3🔬 PubChem |
Volatility & Performance
| Fragrance Note | Base💻 Calculated |
| Volatility Class | Very slow💻 Calculated |
| Persistence Score | 4.8 / 5💻 Calculated |
Odor & Flavor
| Functional Groups | esterether💻 RDKit |
Physical 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.
Physicochemical Properties
DTXSID: DTXSID6052324
Physical Properties
| Molecular Weight | 194.274 g/mol🔬 EPA CompTox |
| Density | 1.09 g/cm^3📊 OPERA |
| Boiling Point | 254.122 °C📊 OPERA |
| Melting Point | 81.751 °C📊 OPERA |
| Flash Point | 111.351 °C📊 OPERA |
| Refractive Index | 1.513 Dimensionless📊 OPERA |
| Molar Volume | 176.96 cm^3/mol📊 OPERA |
Partition & Solubility
| LogP (Octanol-Water) | 2.975 Log10 unitless📊 OPERA |
| LogD (pH 5.5) | 2.975 Log10 unitless📊 OPERA |
| LogD (pH 7.4) | 2.975 Log10 unitless📊 OPERA |
| LogKoa (Octanol-Air) | 5.83 Log10 unitless📊 OPERA |
| Water Solubility | 0 mol/L🔬 EPA CTX |
| Henry's Law Constant | 0 atm-m3/mole📊 OPERA |
Transport Properties
| Vapor Pressure | 0.008 mmHg📊 OPERA |
| Viscosity | 12.813 cP📊 OPERA |
| Surface Tension | 36.711 dyn/cm📊 OPERA |
| Thermal Conductivity | 118.235 mW/(m*K)📊 OPERA |
Molecular Descriptors
| Topological Polar Surface Area | 26.3 Ų💻 Computed |
| H-Bond Donors | 0 count💻 Computed |
| H-Bond Acceptors | 2 count💻 Computed |
| Rotatable Bonds | 1 count💻 Computed |
| Aromatic Rings | 0 count💻 Computed |
| Molar Refractivity | 53.225 cm^3/mol📊 OPERA |
| Polarizability | 21.1 Å^3📊 OPERA |
Data Sources:
🔬 EPA Experimental data from U.S. EPA CompTox Chemicals Dashboard & CTX APIs. 📊 OPERA Predicted using EPA's OPERA QSAR models. 💻 Computed Calculated from SMILES using RDKit.
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