Dihydro farnesal (CAS 32480-08-03) — Floral Top to middle Note Fragrance Ingredient
Dihydro farnesal
CAS 32480-08-03
What Is Dihydro farnesal?
Dihydro farnesal is a synthetic fragrance ingredient used in perfumes and personal care products. It contributes a fresh, floral-green character reminiscent of lily-of-the-valley and citrus peel. This molecule matters because it helps create natural-smelling floral bouquets without relying on plant extracts, making fragrances more sustainable and consistent.
Safety Profile
GENERALLY SAFEWhat Does Dihydro farnesal Smell Like?
Dihydro farnesal opens with a crisp green freshness like crushed lily leaves, quickly revealing a delicate floralcy akin to muguet blossoms washed in morning dew. As it evolves, a subtle citrus undertone emerges – think of mandarin zest rubbed between fingers. The dry-down retains a clean, soapy floral character with surprising tenacity for an aldehyde, leaving a polished trail reminiscent of expensive floral soaps.
Chemistry, Properties & Perfumer Guide
The Chemistry
Dihydro farnesal belongs to the aldehyde class, specifically a saturated analog of farnesal. As a synthetic material, it’s produced through controlled hydrogenation of farnesal or via specialized aldehyde synthesis routes. The molecule lacks chiral centers, ensuring consistent olfactory properties across batches. Its structure combines floral-aldehyde characteristics with enhanced stability compared to its unsaturated counterpart.
Physical & Chemical Properties
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Floral freshnes booster |
| Functional Fragrance | 0.1-0.5% | Up to 1% | Soapy-clean modifier |
Classic Accords
Tip: Use to add diffusion and lift to white floral compositions without excessive sweetness.
Alternatives & Comparisons
More intense but less stable unsaturated version with stronger green character.
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 formal RIFM assessment published as of 2023.
Sustainability
As a synthetic material, dihydro farnesal offers consistent quality without plant harvesting impacts. Production typically uses petrochemical precursors, though some manufacturers are exploring bio-based routes. Its efficiency in formulations (requiring lower doses than some naturals) contributes to reduced environmental load in wastewater.
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