Butane, 1,1′-[methylenebis(oxy)]bis- (CAS 2568-90-3) — Woody Middle Note Fragrance Ingredient
Butane, 1,1'-[methylenebis(oxy)]bis-
CAS 2568-90-3
What Is Butane, 1,1'-[methylenebis(oxy)]bis-?
This synthetic compound is a specialized fragrance ingredient primarily used in industrial applications and some niche perfumery. Consumers might encounter it in certain modern fragrances where its unique chemical structure contributes to novel scent profiles. While not a household name, it represents how modern chemistry expands perfumers’ palettes with innovative materials that don’t exist in nature.
Safety Profile
PROFESSIONAL USEWhat Does Butane, 1,1'-[methylenebis(oxy)]bis- Smell Like?
This synthetic molecule presents a clean, ethereal character with subtle metallic undertones. Its odor profile evolves from an initial sharp, almost ozone-like top note to a more subdued, waxy heart. The dry-down reveals faint woody-amber nuances, though the overall impression remains quite transparent. The scent lingers close to the skin with remarkable persistence for such a lightweight molecule, creating an intriguing contrast between its ephemeral quality and lasting presence.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Chemistry, Properties & Perfumer Guide
The Chemistry
This synthetic compound belongs to the class of ethers, characterized by its methylenebis(oxy) functional group bridging two butane chains. While not found in nature, its structure suggests potential as a fragrance modifier. The synthesis typically involves etherification reactions under controlled conditions. The symmetrical nature of the molecule contributes to its stability and distinctive olfactory properties.
Physical & Chemical Properties
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Industrial Fragrance | 0.5-2% | Up to 5% | Used for novel effects |
| Niche Perfumery | 0.1-1% | Up to 3% | Experimental applications |
Classic Accords
Tip: Use sparingly in experimental compositions seeking unconventional metallic-waxy effects.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not currently restricted by IFRA standards.
RIFM Assessment
No RIFM assessment currently available for this material.
Sustainability
As a purely synthetic material, this compound avoids natural resource depletion but requires energy-intensive production. Its environmental impact depends on manufacturing processes and disposal methods. The lack of biodegradability data suggests caution in formulation.
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