Orris Root Absolute (CAS 8002-73-1) — Floral Heart Note Fragrance Ingredient
Orris Root Absolute
CAS 8002-73-1
What Is Orris Root Absolute?
Orris root absolute is a luxurious fragrance material derived from the rhizomes of Iris pallida and Iris germanica. It’s found in high-end perfumes, cosmetics, and sometimes gourmet flavorings. This ingredient carries a rich, powdery floral scent with woody undertones that evolves beautifully on skin. Orris root is prized for its ability to add depth and sophistication to fragrances. Its complex aroma profile makes it a cornerstone of many classic perfumes, where it contributes a velvety, slightly sweet character that lingers gracefully.
Safety Profile
USE WITH AWARENESS
What Does Orris Root Absolute Smell Like?
Orris root absolute unfolds like a vintage velvet curtain – first a burst of violet-like floralcy with a surprising rooty earthiness, then gradually revealing its true nature as a powdery, slightly sweet orris butter heart. The dry-down is where the magic happens: a sophisticated blend of woody, slightly balsamic notes with a whisper of carrot seed and a lingering softness reminiscent of the finest face powder. There’s a creamy, almost waxy quality that makes it cling to skin for hours, transforming from bright floral to intimate skin scent.
Scent Profile
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Orris root provides the powdery green backbone to this iconic chypre, balancing the sharp galbanum with its soft, velvety texture and extending the floral heart.
Here orris is the star – cold, metallic, and profoundly rooty at first, then gradually warming to reveal its powdery, almost gourmand facets.
Orris root absolute lends a sophisticated powdery-floral character to this masculine fragrance, contrasting beautifully with cocoa and leather notes.
A modern interpretation where orris provides a clean, almost laundry-like softness that makes the fragrance wearable yet distinctive.
Orris root bridges the gap between woody and powdery notes here, creating a seamless transition from top to base notes.
Chemistry, Properties & Perfumer Guide
The Chemistry
Orris root absolute is primarily composed of irone isomers (α-, β-, and γ-irone), which are irones are degradation products of iridals (triterpenoids) found in the iris rhizomes. These irones are responsible for the characteristic violet-like odor. The absolute is obtained through solvent extraction of the dried rhizomes, which must be aged for several years to develop the full aroma profile. The extraction process yields a viscous, butter-like material that contains fatty acids and other lipophilic compounds alongside the fragrant irones.
Physical & Chemical Properties
| Appearance | Viscous yellow to brown liquid |
|---|---|
| Solubility | Soluble in alcohol, insoluble in water |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Adds powdery sophistication |
| Soap | 0.1-0.5% | Up to 1% | Provides lasting floralcy |
| Cosmetics | 0.05-0.2% | Up to 0.5% | Skin-safe concentrations |
| Candles | 0.5-1.5% | Up to 3% | Excellent scent throw |
Classic Accords
+ Sandalwood + Vetiver = Woody Elegance
+ Rose + Patchouli = Classic Floral
Tip: Bloom orris root absolute in alcohol before adding to formulas to prevent cloudiness.
Alternatives & Comparisons
A cleaner extraction with more pronounced woody notes, preferred when a less fatty profile is desired.
Synthetic alternative that captures the powdery violet aspect without the rooty earthiness.
Less refined than absolute, with more green and rooty character for natural perfumery.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. IFRA, REACH, EU Cosmetics Regulation standards update periodically. Consult current IFRA Standards Library before formulating. Not legal or regulatory advice.
IFRA Status
No IFRA restrictions. Considered safe at current usage levels in perfumery.
EU Allergen Declaration
Not listed as an EU allergen.
RIFM Assessment
RIFM has evaluated orris root absolute and found it safe for current use levels in fragrance applications.
Sustainability
Orris root cultivation is labor-intensive, requiring 3-5 years of growth before harvest and additional years of drying. Sustainable sourcing is challenging due to limited growing regions (primarily Morocco, Italy, and China). Synthetic alternatives exist but lack the complexity of natural orris. Some producers are implementing responsible farming practices to ensure future availability of this precious material.
Explore Orris Root Absolute
Browse essential oils and aroma compounds.
Affiliate disclosure: we may earn a small commission at no extra cost to you.
Industry & Science Data
References
- Arctander, S. (1960). Perfume and Flavor Materials of Natural Origin.
- Burdock, G.A. (2010). Fenaroli’s Handbook of Flavor Ingredients.
- Sell, C. (2006). The Chemistry of Fragrances.
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Mar 2026.
Ingredient Data Sheet
CAS 8002-73-1Physical data: PubChem (NIH/NLM), U.S. EPA CompTox Dashboard, EPA OPERA models, RDKit. Odor & flavor: Arctander (Perfume & Flavor Chemicals), Fenaroli's Handbook of Flavor Ingredients, Leffingwell. Thresholds: van Gemert (Compilations of Odour Threshold Values). Regulatory: IFRA Standards 51st, FEMA GRAS. Trade names: Surburg (Common Fragrance & Flavor Materials). All data compiled and cross-referenced for perfumertools.com.
