Methyl decenone (CAS 811412-48-3) — Sweet Top to heart Note Fragrance Ingredient
Methyl decenone
CAS 811412-48-3
What Is Methyl decenone?
Methyl decenone is a synthetic fragrance ingredient used to add fruity, floral, and slightly woody nuances to perfumes. You’ll encounter it in modern floral and fruity fragrances, often as part of the top or heart notes. This molecule matters because it provides a unique balance between freshness and depth, helping perfumers create contemporary scent profiles that evolve beautifully on skin.
Safety Profile
GENERALLY SAFEWhat Does Methyl decenone Smell Like?
Methyl decenone opens with a burst of juicy pear and ripe melon, quickly revealing a floral heart reminiscent of jasmine petals dipped in honey. As it dries down, the sweetness mellows into a sophisticated woody-musky base with hints of clean cotton. The evolution is remarkably smooth, transitioning from fruity freshness to a skin-hugging warmth that lasts for hours. Imagine biting into a perfectly ripe peach while walking through a sun-dappled orchard – that’s the olfactory journey this molecule creates.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used here to amplify the floral bouquet while adding a modern fruity twist that prevents the white flowers from becoming too heavy.
Provides the juicy apple-pear top note that makes this fragrance instantly recognizable and refreshing.
2D Molecular Structure
SMILES: CCCCCC(=O)C(\C)=C\CC
Chemistry, Properties & Perfumer Guide
The Chemistry
Methyl decenone belongs to the ketone family, specifically a methyl-substituted decenone. As a synthetic molecule, it’s produced through controlled organic synthesis routes, typically involving condensation reactions of appropriate precursors. The specific stereochemistry contributes to its odor profile – the E-isomer tends to be fruitier while the Z-isomer leans more floral.
Physical & Chemical Properties
| Appearance | Colorless to pale yellow liquid |
|---|---|
| Solubility | Soluble in alcohol and oils |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | 0.5-5% | Adds fruity-floral lift |
| Body Care | 0.1-0.5% | Up to 1% | Provides fresh character |
Classic Accords
Tip: Use with citrus top notes to create sparkling fruity openings that transition smoothly into floral hearts.
Alternatives & Comparisons
For a more floral, less fruity character with similar longevity.
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
Considered safe at current usage levels based on available data.
Sustainability
As a synthetic material, methyl decenone has minimal environmental impact in production compared to some natural alternatives. Its consistent quality reduces batch-to-batch variation and waste in formulation.
Explore Methyl decenone
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References
- Bauer et al. (2001). Common Fragrance and Flavor Materials. Wiley-VCH.
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data errorIngredient Data Sheet
CAS 811412-48-3Physical Properties
| Molecular Weight | 168.28 g/mol🔬 PubChem |
| LogP (Octanol-Water) | 3.5🔬 PubChem |
| Boiling Point | 220 °C🔬 EPA CompTox |
| Vapor Pressure | 0.2291 mmHg @ 25°C📊 OPERA |
| Flash Point | 97 °C🔬 EPA CompTox |
| Involatility Index | 0.019💻 Calculated |
| log Kp (skin permeability) | -1.242💻 Calculated |
| SMILES | CCCCCC(=O)C(=CCC)C🔬 PubChem |
Volatility & Performance
| Fragrance Note | Heart💻 Calculated |
| Volatility Class | Slow💻 Calculated |
| Persistence Score | 1.2 / 5💻 Calculated |
Odor & Flavor
| Primary Descriptors | floralsweet• leffingwell |
| Functional Groups | ketonealkene💻 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: DTXSID70889208
Physical Properties
| Molecular Weight | 168.28 g/mol🔬 EPA CompTox |
| Density | 0.857 g/cm^3📊 OPERA |
| Boiling Point | 230.045 °C📊 OPERA |
| Melting Point | 5.117 °C📊 OPERA |
| Flash Point | 97.691 °C📊 OPERA |
| Refractive Index | 1.441 Dimensionless📊 OPERA |
| Molar Volume | 200.646 cm^3/mol📊 OPERA |
Partition & Solubility
| LogP (Octanol-Water) | 3.86 Log10 unitless📊 OPERA |
| LogD (pH 5.5) | 3.86 Log10 unitless📊 OPERA |
| LogD (pH 7.4) | 3.86 Log10 unitless📊 OPERA |
| LogKoa (Octanol-Air) | 6.29 Log10 unitless📊 OPERA |
| Water Solubility | 0.001 mol/L📊 OPERA |
| Henry's Law Constant | 0 atm-m3/mole📊 OPERA |
Transport Properties
| Vapor Pressure | 0.114 mmHg📊 OPERA |
| Surface Tension | 28.698 dyn/cm📊 OPERA |
Molecular Descriptors
| Topological Polar Surface Area | 17.07 Ų💻 Computed |
| H-Bond Donors | 0 count💻 Computed |
| H-Bond Acceptors | 1 count💻 Computed |
| Rotatable Bonds | 6 count💻 Computed |
| Aromatic Rings | 0 count💻 Computed |
| Molar Refractivity | 52.941 cm^3/mol📊 OPERA |
| Polarizability | 20.987 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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