Butanamide, 2-ethyl-N-methyl-N-(3-methylphenyl)- (CAS 406488-30-0) — Woody Base Note Fragrance Ingredient
Butanamide, 2-ethyl-N-methyl-N-(3-methylphenyl)-
CAS 406488-30-0
What Is Butanamide, 2-ethyl-N-methyl-N-(3-methylphenyl)-?
Butanamide, 2-ethyl-N-methyl-N-(3-methylphenyl)- is a synthetic fragrance ingredient used in modern perfumery. It contributes to the complexity of fragrances with its unique chemical structure. This ingredient matters because it allows perfumers to create novel scent profiles that aren’t found in nature, expanding the creative possibilities in fragrance design.
Safety Profile
GENERALLY SAFEWhat Does Butanamide, 2-ethyl-N-methyl-N-(3-methylphenyl)- Smell Like?
This synthetic molecule offers a nuanced olfactory profile, starting with a sharp, almost metallic top note that quickly evolves into a warmer, slightly woody heart. The dry-down reveals a subtle, lingering sweetness reminiscent of amber, making it a versatile base for modern fragrances. Its behavior on skin is consistent, with moderate projection and longevity.
2D Molecular Structure
SMILES: CCC(CC)C(=O)N(C)C1=CC=CC(C)=C1
Chemistry, Properties & Perfumer Guide
The Chemistry
Butanamide, 2-ethyl-N-methyl-N-(3-methylphenyl)- belongs to the amide class of organic compounds. It is synthesized through the reaction of 2-ethylbutanoyl chloride with N-methyl-3-methylaniline. The molecule features a branched alkyl chain and an aromatic ring, contributing to its unique scent profile. Its synthetic origin allows for consistent quality and purity in fragrance applications.
Physical & Chemical Properties
| Boiling Point | N/A |
|---|---|
| Density | N/A |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | Up to 5% | Adds depth and warmth |
| Functional Fragrance | 0.5-2% | Up to 3% | Used for its stability |
Classic Accords
Tip: Use in small amounts to enhance woody and amber accords without overpowering.
Alternatives & Comparisons
Provides a sweeter, more caramel-like note when a less woody profile is desired.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No current IFRA restrictions.
RIFM Assessment
No specific RIFM assessment found.
Sustainability
As a synthetic ingredient, it avoids the environmental impact of harvesting natural resources. Its production can be optimized for minimal waste and energy use, making it a sustainable choice for modern perfumery.
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References
- PubChem Compound Summary for Butanamide, 2-ethyl-N-methyl-N-(3-methylphenyl)- PubChem
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data errorIngredient Data Sheet
CAS 406488-30-0Physical Properties
| Molecular Weight | 219.32 g/mol🔬 PubChem |
| LogP (Octanol-Water) | 3.4🔬 PubChem |
| Boiling Point | 295 °C🔬 EPA CompTox |
| Vapor Pressure | 0.0001 mmHg @ 25°C📊 OPERA |
| Flash Point | 138.2 °C🔬 EPA CompTox |
| log Kp (skin permeability) | -1.624💻 Calculated |
| SMILES | CCC(CC)C(=O)N(C)C1=CC=CC(=C1)C🔬 PubChem |
Volatility & Performance
| Fragrance Note | Base💻 Calculated |
| Volatility Class | Very slow💻 Calculated |
| Persistence Score | 7.9 / 5💻 Calculated |
Odor & Flavor
| Functional Groups | aromatic💻 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: DTXSID20889177
Physical Properties
| Molecular Weight | 219.328 g/mol🔬 EPA CompTox |
| Density | 0.981 g/cm^3📊 OPERA |
| Boiling Point | 309.938 °C📊 OPERA |
| Melting Point | 31.99 °C📊 OPERA |
| Flash Point | 137.23 °C📊 OPERA |
| Refractive Index | 1.525 Dimensionless📊 OPERA |
| Molar Volume | 223.73 cm^3/mol📊 OPERA |
Partition & Solubility
| LogP (Octanol-Water) | 3.571 Log10 unitless📊 OPERA |
| LogD (pH 5.5) | 3.571 Log10 unitless📊 OPERA |
| LogD (pH 7.4) | 3.571 Log10 unitless📊 OPERA |
| LogKoa (Octanol-Air) | 8.2 Log10 unitless📊 OPERA |
| Water Solubility | 0.001 mol/L📊 OPERA |
| Henry's Law Constant | 0 atm-m3/mole📊 OPERA |
Transport Properties
| Vapor Pressure | 0 mmHg📊 OPERA |
| Viscosity | 22.166 cP📊 OPERA |
| Surface Tension | 36.077 dyn/cm📊 OPERA |
| Thermal Conductivity | 138.359 mW/(m*K)📊 OPERA |
Molecular Descriptors
| Topological Polar Surface Area | 20.31 Ų💻 Computed |
| H-Bond Donors | 0 count💻 Computed |
| H-Bond Acceptors | 1 count💻 Computed |
| Rotatable Bonds | 4 count💻 Computed |
| Aromatic Rings | 1 count💻 Computed |
| Molar Refractivity | 68.544 cm^3/mol📊 OPERA |
| Polarizability | 27.173 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.
