ALDEHYDE C-08 (CAS: 124-13-0)
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Aldehyde C-08 (Octanal) – CAS: 124-13-0
🔍 Executive Summary
Aldehyde C-08, also known as Octanal, is an aliphatic aldehyde widely used in perfumery to impart a fresh, citrusy note reminiscent of orange peel, with a soft waxy undertone. It features moderate longevity and excellent compatibility with floral and woody ingredients. It is one of the classical aldehydes used to add brightness and openness to fragrance compositions.
🧬 Chemical Identity
| Property | Value |
|---|---|
| Trade Name | Aldehyde C-8 |
| Chemical Name | Octanal |
| Other Names | Caprylic Aldehyde, Octyl Aldehyde |
| Molecular Formula | C₈H₁₆O |
| Molecular Weight | 128.21 g/mol |
| CAS Number | 124-13-0 |
| FEMA Number | 2797 |
| EC Number | 204-683-8 |
⚗️ Physical Properties (Updated)
| Property | Value |
|---|---|
| Physical Appearance | Colorless to pale yellow liquid |
| Density | 0.822 g/cm³ at 20°C |
| Melting Point | 12–15°C |
| Boiling Point | 171°C |
| Flash Point | 51°C |
| Refractive Index | 1.421 at 20°C |
| Water Solubility | 0.21 g/L at 20°C |
| Vapor Pressure at 20°C | 2 mmHg (≈266.6 Pa) |
| Vapor Pressure at 30°C | 4.25 hPa |
| Vapor Pressure at 40°C | 7.38 hPa |
| Vapor Pressure at 50°C | 12.4 hPa |
| Heat of Vaporization (ΔHvap) | 43.4 kJ/mol at 35°C |
| Heat of Fusion (ΔHfus) | 25.86 kJ/mol at 15°C |
| Viscosity (η) | 1.2 × 10⁻³ Pa·s at 25°C |
🌸 Olfactory Characteristics
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Olfactory Type: Aldehydic, citrusy, fruity
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Scent Description: Fresh orange peel with a soft waxy nuance
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Strength: Strong; recommended usage ≤ 1%
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Longevity: Moderate; lasts up to 7 hours in composition
👃 Sensory Evaluation
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Initial Impression: Bright, juicy citrus reminiscent of ripe orange
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Development: Evolves into a soft, clean waxy tone
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Drydown: Leaves a soft, light clean finish with moderate persistence
🧪 Aromatic Structure Breakdown
Aldehyde C-8 is a straight-chain aliphatic aldehyde composed of eight carbon atoms, imparting it a balance between freshness and warmth. It is commonly used as a top or mid note in citrus-floral compositions.
🌿 Advanced Olfactory Information
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Fragrance Note Level: Mid to Top Note
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Stability in Formulas: Good in alcohol-based and detergent compositions
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Blending Compatibility: Pairs well with citrus, floral, and woody notes
🤝 Olfactory Compatibility
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With citrus notes: Enhances freshness
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With floral notes: Adds brightness and sparkle
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With woody notes: Balances warmth and depth
🧴 Suggested Applications
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Fine fragrances
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Household cleaners
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Scented candles
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Personal care products (shampoo, soap, etc.)
🎶 Suggested Accord Combinations (100% Total Composition)
| Accord Type | Ingredient | Percentage (%) | CAS Number |
|---|---|---|---|
| Citrus Fresh | Aldehyde C-8 | 30% | 124-13-0 |
| Limonene | 50% | 138-86-3 | |
| Linalool | 20% | 78-70-6 | |
| Soft Floral | Aldehyde C-8 | 25% | 124-13-0 |
| Geraniol | 40% | 106-24-1 | |
| Jasmine Oil | 35% | 8022-96-6 | |
| Warm Woody | Aldehyde C-8 | 20% | 124-13-0 |
| Cedarwood Oil | 50% | 8000-27-9 | |
| Patchouli Oil | 30% | 8014-09-3 |
⚠️ Safety & Handling
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Precautions: Avoid contact with skin and eyes. May cause irritation
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Storage: Store in a cool, dry, and well-ventilated area away from heat sources
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Handling: Use in well-ventilated areas with appropriate personal protection
📄 IFRA Regulatory Status
According to IFRA Amendment 51, Aldehyde C-8 is not subject to specific restrictions when used in accordance with applicable categories and dosage levels.
View IFRA Certificate – Aurochemicals
🔗 Scientific References
🏁 Conclusion
Aldehyde C-08 is a distinctive perfumery ingredient offering a clean, citrusy brightness that enhances a wide range of compositions. This technical profile serves as a comprehensive reference for perfumers and formulation chemists seeking a reliable and versatile aldehydic note.
Please customer do their own research on the product and verify its proper use. This product cannot be returned.
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