ALDEHYDE C-11 UNDECYLENIC (CAS: 112-45-8)
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ALDEHYDE C-11 UNDECYLENIC (CAS: 112-45-8)
📊 Chemical Profile
CAS Number: 112-45-8
EC Number: 203-973-1
IUPAC Name: Undec-10-enal
Common Trade Name: Aldehyde C-11 Undecylenic
Molecular Formula: C₁₁H₂₀O
Molecular Weight: 168.28 g/mol
🔍 Professional Summary
Aldehyde C-11 Undecylenic is an unsaturated fatty aldehyde characterized by a clean, green, waxy scent with fruity and metallic nuances. It is widely used in fine fragrances to impart a bright and fresh character and is a staple in both classical and modern aldehydic compositions.
⚗️ Physical Properties
|
Property |
Value |
|
Appearance |
Colorless to pale yellow liquid |
|
Density (25°C) |
0.838 – 0.848 g/cm³ |
|
Boiling Point |
265 – 270°C at 1013 hPa |
|
Melting Point |
< -20°C |
|
Refractive Index (20°C) |
1.446 – 1.452 |
|
Vapor Pressure (25°C) |
~0.02 mmHg |
|
Solubility |
Insoluble in water; soluble in alcohols and oils |
🌸 Olfactory Characteristics
- Odor: Waxy, green, fresh, fruity-metallic
- Odor Family: Aldehydic, Green
- Overall Impression: Brightness, Purity, Freshness
👋 Sensory Evaluation
- Aromatic Strength: Medium to strong
- Tenacity: Excellent on blotter and skin
- Effect: Enhances clarity and brightness in fragrance structure
🧪 Aromatic Structure Breakdown
- Main Component: Undecylenic Aldehyde
- Type: Long-chain unsaturated fatty aldehyde
- Structure: Terminal double bond for enhanced scent impact
🎼 Suggested Accords (Total 100%)
🌸 Floral Accord
|
Ingredient |
Percentage |
CAS Number |
|
Aldehyde C-11 Undecylenic |
2% |
112-45-8 |
|
Phenyl Ethyl Alcohol |
30% |
60-12-8 |
|
Geraniol |
25% |
106-24-1 |
|
Hydroxycitronellal |
20% |
107-75-5 |
|
Hedione |
23% |
24851-98-7 |
🍏 Fruity Accord
|
Ingredient |
Percentage |
CAS Number |
|
Aldehyde C-11 Undecylenic |
3% |
112-45-8 |
|
Ethyl Maltol |
15% |
4940-11-8 |
|
Isoamyl Acetate |
25% |
123-92-2 |
|
Gamma-Undecalactone |
32% |
104-67-6 |
|
Linalool |
25% |
78-70-6 |
🌿 Green Accord
|
Ingredient |
Percentage |
CAS Number |
|
Aldehyde C-11 Undecylenic |
5% |
112-45-8 |
|
Cis-3-Hexenol |
35% |
928-96-1 |
|
Galbanum Oil |
20% |
8023-91-4 |
|
Linalyl Acetate |
20% |
115-95-7 |
|
Cyclopentadecanolide |
20% |
68956-79-6 |
🌲 Woody Accord
|
Ingredient |
Percentage |
CAS Number |
|
Aldehyde C-11 Undecylenic |
2% |
112-45-8 |
|
Iso E Super |
40% |
54464-57-2 |
|
Sandalwood (synthetic) |
25% |
8024-35-9 |
|
Vetiveryl Acetate |
20% |
88-84-6 |
|
Ambroxan |
13% |
6790-58-5 |
🧴 Recommended Applications
Fine perfumes
Scented cosmetic products
Scented candles
Air fresheners
Luxury soap bars
🛡️ Safety & Storage
Store in sealed containers in a cool, dry place
Avoid heat and direct ignition sources
Use at controlled concentrations following regulatory and sensory evaluation
📏 IFRA Guidelines
No specific restriction is listed for Aldehyde C-11 Undecylenic in most categories under the current IFRA 51st Amendment.
✅ IFRA Standards Page: https://ifrafragrance.org/standards
📚 External References
- PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/Undecylenic-aldehyde
• ChemicalBook: https://www.chemicalbook.com/ChemicalProductProperty_EN_CB9190322.htm
🏁 Conclusion
Aldehyde C-11 Undecylenic is a key ingredient for bringing brightness and freshness into perfumes. Its versatile applications and distinctive profile make it ideal for refined fragrance creation.
🔗 Learn more: www.atiabintl.com
Please customer do their own research on the product and verify its proper use. This product cannot be returned.
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