3-(p-tert-Butylphenyl)-2-methylpropanol (CAS 56107-04-01) — Woody Middle Note Fragrance Ingredient
3-(p-tert-Butylphenyl)-2-methylpropanol
CAS 56107-04-01
What Is 3-(p-tert-Butylphenyl)-2-methylpropanol?
3-(p-tert-Butylphenyl)-2-methylpropanol is a synthetic fragrance ingredient used to add woody, floral, and slightly powdery notes to perfumes. You’ll encounter it in fine fragrances and personal care products. This compound matters because it provides long-lasting scent profiles and helps stabilize other volatile ingredients, making fragrances more enduring.
Safety Profile
GENERALLY SAFEWhat Does 3-(p-tert-Butylphenyl)-2-methylpropanol Smell Like?
This ingredient opens with a crisp, woody aroma reminiscent of freshly cut cedar, subtly sweetened by a floral undertone. As it evolves, the scent develops a powdery facet akin to violet petals, balanced by a clean, musky dry-down. The overall effect is elegant and versatile, blending seamlessly with both fresh and oriental accords.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used to enhance the floral bouquet, adding a subtle woody-powdery nuance that complements the aldehydic top notes.
Provides a clean, woody foundation that balances the fresh citrus and spicy notes.
Chemistry, Properties & Perfumer Guide
The Chemistry
3-(p-tert-Butylphenyl)-2-methylpropanol is a synthetic aromatic alcohol. It is typically synthesized through Friedel-Crafts alkylation of p-tert-butylphenol followed by reduction. The compound’s structure features a tert-butyl group attached to a phenyl ring, which contributes to its stability and longevity in fragrance formulations.
Physical & Chemical Properties
| Boiling Point | Not available |
|---|---|
| Density | Not available |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 5-10% | Up to 15% | Adds woody-floral depth |
| Personal Care | 1-3% | Up to 5% | Provides long-lasting scent |
Classic Accords
Tip: Use in conjunction with citrus top notes to enhance freshness and longevity.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No restrictions under IFRA standards.
EU Allergen Declaration
Not listed as an EU allergen.
RIFM Assessment
RIFM has assessed this ingredient as safe for use in current practices.
Sustainability
As a synthetic ingredient, its production is controlled and scalable, reducing environmental impact compared to natural alternatives. Sourcing is consistent, with no reliance on endangered species or habitats.
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References
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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