Decahydro-beta-naphthyl acetate (CAS 10519-11-6) — Woody Base Note Fragrance Ingredient
Decahydro-beta-naphthyl acetate
CAS 10519-11-6
What Is Decahydro-beta-naphthyl acetate?
Decahydro-beta-naphthyl acetate is a synthetic fragrance ingredient used in perfumes and scented products. It’s a laboratory-created molecule not found in nature. This compound contributes to complex woody and ambery scent profiles in modern fragrances.
Safety Profile
GENERALLY SAFEWhat Does Decahydro-beta-naphthyl acetate Smell Like?
A sophisticated synthetic note displaying a rich, woody character with subtle amber undertones. The initial impression is clean and slightly camphoraceous, evolving into a smooth, velvety dry-down with tenacious persistence. Suggests aged wood barrels with a whisper of dry tobacco leaves, remaining linear yet complex throughout its lifespan on skin.
2D Molecular Structure
SMILES: CC(=O)OC1CCC2CCCCC2C1
Chemistry, Properties & Perfumer Guide
The Chemistry
Decahydro-beta-naphthyl acetate is a fully hydrogenated naphthalene derivative esterified with acetic acid. As a synthetic material, it’s produced through catalytic hydrogenation of naphthalene derivatives followed by acetylation. The decahydro structure provides exceptional stability and resistance to oxidation compared to partially hydrogenated analogs. Its molecular rigidity contributes to the distinctive woody-amber olfactory profile.
Physical & Chemical Properties
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Base note fixative |
| Home Care | 0.1-0.5% | Up to 1% | Long-lasting woody note |
Classic Accords
Tip: Use as a basenote anchor to extend the longevity of woody compositions.
Alternatives & Comparisons
More diffusive woody amber with similar tenacity but different tonal qualities.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not currently restricted by IFRA standards.
RIFM Assessment
Not currently evaluated by RIFM.
Sustainability
As a synthetic material, production avoids natural resource depletion but requires petrochemical feedstocks. Manufacturing can be optimized for energy efficiency given its hydrogenation-intensive synthesis pathway. No known ecological concerns regarding biodegradation products.
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Ingredient Data Sheet
CAS 10519-11-6Physical Properties
| Molecular Weight | 196.29 g/mol🔬 PubChem |
| LogP (Octanol-Water) | 3.5🔬 PubChem |
| Boiling Point | 263 °C🔬 EPA CompTox |
| Vapor Pressure | 0.18 mmHg @ 25°C📊 OPERA |
| Flash Point | 120.5 °C🔬 EPA CompTox |
| Involatility Index | 0.0138💻 Calculated |
| log Kp (skin permeability) | -1.412💻 Calculated |
| SMILES | CC(=O)OC1CCC2CCCCC2C1🔬 PubChem |
Volatility & Performance
| Fragrance Note | Heart💻 Calculated |
| Volatility Class | Slow💻 Calculated |
| Persistence Score | 1.5 / 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: DTXSID4051534
Physical Properties
| Molecular Weight | 196.29 g/mol🔬 EPA CompTox |
| Density | 1.008 g/cm^3🔬 EPA CTX |
| Boiling Point | 263 °C🔬 EPA CTX |
| Melting Point | -76.6 °C🔬 EPA CTX |
| Flash Point | 120.5 °C🔬 EPA CTX |
| Refractive Index | 1.48 Dimensionless📊 OPERA |
| Molar Volume | 194.533 cm^3/mol📊 OPERA |
Partition & Solubility
| LogP (Octanol-Water) | 4.45 Log10 unitless🔬 EPA CTX |
| LogD (pH 5.5) | 3.943 Log10 unitless📊 OPERA |
| LogD (pH 7.4) | 3.943 Log10 unitless📊 OPERA |
| LogKoa (Octanol-Air) | 6.09 Log10 unitless📊 OPERA |
| Water Solubility | 0 mol/L🔬 EPA CTX |
| Henry's Law Constant | 0 atm-m3/mole📊 OPERA |
Transport Properties
| Vapor Pressure | 0.21 mmHg🔬 EPA CTX |
| Viscosity | 8.789 cP📊 OPERA |
| Surface Tension | 34.177 dyn/cm📊 OPERA |
| Thermal Conductivity | 127.12 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 | 55.312 cm^3/mol📊 OPERA |
| Polarizability | 21.927 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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