1-Methoxyhexane (CAS 4747-07-03) — Green Top Note Fragrance Ingredient
1-Methoxyhexane
CAS 4747-07-03
What Is 1-Methoxyhexane?
1-Methoxyhexane is a synthetic aroma chemical rarely encountered by consumers directly. It may appear as a trace component in some industrial fragrances or household products. This compound is valued by perfumers for its unique ethereal quality, though it’s not a mainstream ingredient. Its subtle effects are most noticeable in creating airy, diffusive top notes that lift other ingredients.
Safety Profile
USE WITH AWARENESSWhat Does 1-Methoxyhexane Smell Like?
1-Methoxyhexane presents a crisp, ethereal character reminiscent of freshly peeled green apples with a metallic edge. Its initial burst carries a fleeting gasoline-like sharpness that quickly evolves into a clean, ozonic impression. The dry-down reveals subtle fruity undertones akin to underripe melon, though the overall effect remains transparent and diffusive. This molecule lacks staying power but provides an intriguingly ambiguous space that enhances other top notes.
Chemistry, Properties & Perfumer Guide
The Chemistry
1-Methoxyhexane belongs to the alkyl methyl ether class, synthesized through Williamson ether synthesis by reacting 1-hexanol with methyl halides under basic conditions. Unlike many fragrance ethers, it lacks aromatic character, presenting a purely aliphatic structure. The methoxy group at position 1 creates distinctive electronic effects that influence its volatility and odor profile. Industrial production typically yields racemic mixtures as chirality has minimal impact on sensory properties in this case.
Physical & Chemical Properties
| Boiling Point | Not established |
|---|---|
| Density | Not established |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Functional Fragrance | 0.1-0.5% | Up to 1% | Used for diffusive lift |
| Fine Fragrance | Trace | Up to 0.3% | Special effect modifier |
Classic Accords
Tip: Use in minute quantities to avoid dominating compositions with its sharp opening.
Alternatives & Comparisons
Offers similar volatility with slightly fruitier character and better blending properties.
Provides comparable diffusive quality with added herbal complexity and better substantivity.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No specific restrictions under current IFRA standards (Amendment 49).
RIFM Assessment
No RIFM safety assessment currently available for this material.
Sustainability
As a fully synthetic material produced from petrochemical feedstocks, 1-Methoxyhexane has minimal direct environmental impact due to extremely low usage volumes. Production follows standard industrial chemical processes with appropriate controls. Green chemistry alternatives for ether synthesis may reduce energy requirements in future manufacturing.
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