Ethyl 3(2-furyl)propanoate (CAS 10031-90-0) — Sweet Top-middle Note Fragrance Ingredient
Ethyl 3(2-furyl)propanoate
CAS 10031-90-0
What Is Ethyl 3(2-furyl)propanoate?
Ethyl 3(2-furyl)propanoate is a synthetic fragrance ingredient used to add fruity, caramel-like notes to perfumes and flavored products. You might encounter it in gourmand fragrances or fruit-flavored candies. This molecule matters because it creates realistic jammy, berry-like aromas at very low concentrations, allowing perfumers to build complex fruity accords without overwhelming sweetness.
Safety Profile
GENERALLY SAFEWhat Does Ethyl 3(2-furyl)propanoate Smell Like?
Ethyl 3(2-furyl)propanoate bursts with jammy red fruit character – think crushed raspberries macerated in sugar syrup with a hint of caramelized pineapple. The top note has a bright, slightly tart berry quality that evolves into a deeper cooked-fruit heart. The dry-down reveals a subtle woody-furanoic undertone that prevents cloying sweetness. Exceptionally diffusive, it adds lift to fruity compositions while maintaining tenacity uncommon for fruity notes.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used alongside ethyl maltol to create the revolutionary ‘gourmand’ effect, contributing berry-like depth to the patchouli-chocolate accord.
Provides jammy fruitiness to balance the iris-praline heart, creating a candied berry effect in the top notes.
2D Molecular Structure
SMILES: CCOC(=O)CCC1=CC=CO1
Chemistry, Properties & Perfumer Guide
The Chemistry
Ethyl 3(2-furyl)propanoate belongs to the furanoid ester class, synthesized via esterification of 3-(2-furyl)propanoic acid with ethanol. The furan ring contributes distinctive caramelic-fruity character while the ester group provides volatility. Though entirely synthetic, it mimics compounds found in trace amounts in ripe berries. The molecule lacks chirality centers but shows conformational flexibility that influences its odor profile.
Physical & Chemical Properties
| Boiling Point | ~220 °C (estimated) |
|---|---|
| Density | ~1.05 g/cm³ (estimated) |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Powerful fruity modifier |
| Functional Fragrance | 0.1-0.5% | Up to 1% | Berry flavor enhancer |
Classic Accords
Tip: Use at 0.1-0.5% in fruity accords to add naturalistic jamminess without excessive sweetness.
Alternatives & Comparisons
More intense strawberry character with better diffusion, but requires lower dosing to prevent overpowering blends.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted under current IFRA standards (Amendment 49).
RIFM Assessment
Evaluated as safe for current fragrance use levels (RIFM, 2018).
Sustainability
Synthesized from petrochemical feedstocks via efficient catalytic processes. No known ecological concerns at production scale. Biodegradation studies show moderate environmental persistence but low bioaccumulation potential.
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References
- Burdock, G.A. (2010). Fenaroli’s Handbook of Flavor Ingredients. CRC Press. ISBN 9781439847503
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data errorIngredient Data Sheet
CAS 10031-90-0Physical Properties
| Molecular Weight | 168.19 g/mol🔬 PubChem |
| LogP (Octanol-Water) | 1.4🔬 PubChem |
| Boiling Point | 260 °C🔬 EPA CompTox |
| log Kp (skin permeability) | -2.732💻 Calculated |
| SMILES | CCOC(=O)CCC1=CC=CO1🔬 PubChem |
Volatility & Performance
| Fragrance Note | Heart💻 Calculated |
Odor & Flavor
| Primary Descriptors | fruitygreenpineapplewoody• leffingwell |
| Functional Groups | esteretheraromatic💻 RDKit |
| Ethyl 2-furanpropionate has a fruity odor reminiscent of chamomile.📖 Fenaroli | |
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: DTXSID0064917
Physical Properties
| Molecular Weight | 168.192 g/mol🔬 EPA CompTox |
| Density | 1.055 g/cm^3🔬 EPA CTX |
| Boiling Point | 260 °C🔬 EPA CTX |
| Melting Point | 24.5 °C🔬 EPA CTX |
| Flash Point | 89.552 °C📊 OPERA |
| Refractive Index | 1.466 Dimensionless📊 OPERA |
| Molar Volume | 158.048 cm^3/mol📊 OPERA |
Partition & Solubility
| LogP (Octanol-Water) | 1.943 Log10 unitless📊 OPERA |
| LogD (pH 5.5) | 1.938 Log10 unitless📊 OPERA |
| LogD (pH 7.4) | 1.778 Log10 unitless📊 OPERA |
| LogKoa (Octanol-Air) | 4.97 Log10 unitless📊 OPERA |
| Water Solubility | 0.013 mol/L📊 OPERA |
| Henry's Law Constant | 0 atm-m3/mole📊 OPERA |
Transport Properties
| Vapor Pressure | 0.103 mmHg📊 OPERA |
| Viscosity | 3.259 cP📊 OPERA |
| Surface Tension | 33.971 dyn/cm📊 OPERA |
Molecular Descriptors
| Topological Polar Surface Area | 39.44 Ų💻 Computed |
| H-Bond Donors | 0 count💻 Computed |
| H-Bond Acceptors | 3 count💻 Computed |
| Rotatable Bonds | 4 count💻 Computed |
| Aromatic Rings | 1 count💻 Computed |
| Molar Refractivity | 43.775 cm^3/mol📊 OPERA |
| Polarizability | 17.354 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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