Geranium oil, terpeneless (CAS 68916-44-9) — Floral Heart Note Fragrance Ingredient
Geranium oil, terpeneless
CAS 68916-44-9
What Is Geranium oil, terpeneless?
Terpeneless geranium oil is a concentrated version of traditional geranium oil, where lighter terpenes have been removed for enhanced stability and longevity. Commonly found in high-end perfumes and aromatherapy products. This process creates a richer, more floral-rosy scent profile that lasts longer on skin and in formulations, making it valuable for perfumers seeking depth without top-note volatility.
Safety Profile
GENERALLY SAFEWhat Does Geranium oil, terpeneless Smell Like?
A lush, velvety rose-like floral with minty-green undertones and a hint of citrus. Reminiscent of dew-covered rose gardens at dawn, with a subtle earthy warmth that evolves into a honeyed sweetness. The terpene removal amplifies its rosy character, creating a scent that lingers like expensive satin sheets rather than fading like morning mist.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Dominant heart note showcasing terpeneless geranium’s rosy depth. The concentration allows it to replace traditional rose absolutes while adding unique green-minty facets.
Chemistry, Properties & Perfumer Guide
The Chemistry
Terpeneless geranium oil is produced through molecular distillation or solvent extraction to remove monoterpenes (like pinene and limonene). The remaining sesquiterpenes and oxygenated compounds (citronellol, geraniol) create a more stable, concentrated material. This process mimics the natural aging of geranium oil but without oxidative degradation.
Physical & Chemical Properties
| Appearance | Pale yellow to greenish liquid |
|---|---|
| Flash Point | >100°C |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-5% | 0.5-10% | Adds rosy sophistication without heaviness |
| Home Fragrance | 0.5-3% | 0.1-5% | Provides long-lasting floral character |
Classic Accords
Tip: Use to replace rose notes when more diffusion and freshness are desired.
Alternatives & Comparisons
Standard geranium oil with terpenes intact. Use when brighter top notes are needed, though requires more frequent reapplication.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No restrictions under IFRA 51st Amendment. Considered safe at standard usage levels.
EU Allergen Declaration
Contains citronellol and geraniol – EU allergen declaration required above 0.001% in leave-on products.
RIFM Assessment
RIFM safety assessment confirms current use levels pose no significant risk.
Sustainability
Sustainable production involves CO2 extraction of cultivated Pelargonium graveolens. Terpene removal reduces waste as separated terpenes are used in other industries. Preferred over rose absolutes due to higher yield per acre.
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References
- Lis-Balchin M. (2002). Geranium and Pelargonium: The Genera Geranium and Pelargonium. CRC Press. ISBN 978-0-415-28487-5
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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