Methoxy dicyclopentadiene carboxaldehyde (CAS 86803-90-9) — Woody Middle to Base Note Fragrance Ingredient
Methoxy dicyclopentadiene carboxaldehyde
CAS 86803-90-9
What Is Methoxy dicyclopentadiene carboxaldehyde?
Methoxy dicyclopentadiene carboxaldehyde is a synthetic fragrance ingredient used in modern perfumery. It adds a unique woody-amber character with subtle floral undertones. This ingredient is found in high-end perfumes and personal care products, prized for its ability to enhance longevity and complexity in fragrance compositions.
Safety Profile
USE WITH AWARENESSWhat Does Methoxy dicyclopentadiene carboxaldehyde Smell Like?
Methoxy dicyclopentadiene carboxaldehyde opens with a crisp, slightly metallic edge that quickly evolves into a warm, woody-amber core. The dry-down reveals a lingering floral sweetness, reminiscent of dried petals and sun-warmed wood. Its scent profile is both modern and timeless, with a velvety texture that blends seamlessly into complex accords.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used to create a modern green-woody accord, enhancing the fragrance’s longevity and adding a subtle floral-amber nuance.
2D Molecular Structure
SMILES: COC1CC2CC1C1CC(CC21)C=O
Chemistry, Properties & Perfumer Guide
The Chemistry
Methoxy dicyclopentadiene carboxaldehyde is a synthetic aldehyde derived from dicyclopentadiene. Its structure features a carboxaldehyde group attached to a methoxy-substituted dicyclopentadiene ring system. This configuration imparts both stability and unique olfactory properties, making it valuable in modern perfumery.
Physical & Chemical Properties
| Appearance | Colorless to pale yellow liquid |
|---|---|
| Boiling Point | Not readily available |
| Density | Not readily available |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | Up to 5% | Adds warmth and longevity |
| Personal Care | 0.5-1% | Up to 2% | Used for subtle amber notes |
Classic Accords
Tip: Use in moderation to avoid overpowering other notes.
Alternatives & Comparisons
When a cleaner, more transparent amber note is desired without the floral undertones.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not currently restricted by IFRA.
EU Allergen Declaration
Not listed as an EU allergen.
RIFM Assessment
Under review by RIFM for safety assessment.
Sustainability
As a synthetic ingredient, its production is controlled and does not rely on natural resources. However, energy consumption and chemical synthesis processes should be considered in sustainability evaluations.
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References
- PubChem. Methoxy dicyclopentadiene carboxaldehyde. PubChem
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data errorIngredient Data Sheet
CAS 86803-90-9Physical Properties
| Molecular Weight | 194.27 g/mol🔬 PubChem |
| LogP (Octanol-Water) | 1.4🔬 PubChem |
| Boiling Point | 277.6 °C🔬 EPA CompTox |
| Vapor Pressure | 470.3 mmHg @ 25°C📊 OPERA |
| Flash Point | 114.6 °C🔬 EPA CompTox |
| Involatility Index | 36.3664💻 Calculated |
| log Kp (skin permeability) | -2.891💻 Calculated |
| SMILES | COC1CC2CC1C3C2CC(C3)C=O🔬 PubChem |
Volatility & Performance
| Fragrance Note | Heart💻 Calculated |
| Volatility Class | Very fast💻 Calculated |
| Persistence Score | 0.5 / 5💻 Calculated |
Odor & Flavor
| Primary Descriptors | sweetwoody• leffingwell |
| Functional Groups | aldehydeether💻 RDKit |
Regulatory Status
| IFRA Listed | Yes — see IFRA Standards for category limits⚖️ IFRA 51 |
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: DTXSID6052586
Physical Properties
| Molecular Weight | 194.274 g/mol🔬 EPA CompTox |
| Density | 1.082 g/cm^3📊 OPERA |
| Boiling Point | 277.55 °C🔬 EPA CTX |
| Melting Point | -20 °C🔬 EPA CTX |
| Flash Point | 117.706 °C📊 OPERA |
| Refractive Index | 1.513 Dimensionless📊 OPERA |
| Molar Volume | 177.718 cm^3/mol📊 OPERA |
Partition & Solubility
| LogP (Octanol-Water) | 2.454 Log10 unitless📊 OPERA |
| LogD (pH 5.5) | 2.454 Log10 unitless📊 OPERA |
| LogD (pH 7.4) | 2.454 Log10 unitless📊 OPERA |
| LogKoa (Octanol-Air) | 6.13 Log10 unitless📊 OPERA |
| Water Solubility | 0.022 mol/L🔬 EPA CTX |
| Henry's Law Constant | 0 atm-m3/mole📊 OPERA |
Transport Properties
| Vapor Pressure | 470.3 mmHg🔬 EPA CTX |
| Viscosity | 13.865 cP📊 OPERA |
| Surface Tension | 37.286 dyn/cm📊 OPERA |
| Thermal Conductivity | 121.515 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 | 2 count💻 Computed |
| Aromatic Rings | 0 count💻 Computed |
| Molar Refractivity | 53.43 cm^3/mol📊 OPERA |
| Polarizability | 21.181 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.
