FlavScents AInsights Entry: Orris Rhizome Concrete Butter (Iris Pallida) (CAS: 8002-73-1)

1. Identity & Chemical Information

• Common Name(s): Orris Rhizome Concrete Butter, Iris Pallida Concrete
• CAS Number: 8002-73-1
• FEMA Number: Not applicable
• Other Identifiers: Not applicable
• Material Type: Natural complex material derived from the rhizomes of Iris pallida
• Description: Orris rhizome concrete butter is a natural extract obtained from the rhizomes of the Iris pallida plant. It is a complex mixture of various constituents, primarily used in perfumery for its unique fragrance profile.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

Orris rhizome concrete butter is renowned for its distinctive and luxurious fragrance, characterized by a powdery, floral, and woody aroma with subtle violet and earthy undertones. The intensity of the scent is moderate to strong, with a long-lasting diffusion that makes it a valuable base note in perfumery. The material is primarily used to impart a sense of elegance and sophistication to fragrance compositions, often serving as a key impact note.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

Orris rhizome concrete butter is derived from the rhizomes of the Iris pallida plant, which is native to the Mediterranean region. The rhizomes are harvested, dried, and aged for several years to develop the characteristic fragrance before being processed into concrete. The formation of its unique aroma is attributed to the enzymatic degradation of irones, which are the primary aromatic compounds responsible for its scent. This material is often used in products labeled as "natural fragrance" due to its botanical origin.

Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs

4. Use in Flavors

While orris rhizome concrete butter is primarily used in perfumery, it can also be utilized in flavor applications, particularly in luxury food products and beverages where a floral note is desired. Its use in flavors is limited due to its strong aroma and potential cost implications. Typical use levels in food and beverages are low, often in the range of 0.1 to 1 ppm, to avoid overpowering other flavor components. The material is stable under typical processing conditions but may degrade under high heat or acidic environments.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

Orris rhizome concrete butter is a prized ingredient in the fragrance industry, used extensively in high-end perfumes and luxury personal care products. It belongs to the floral fragrance family and is valued for its ability to add depth and complexity to compositions. It functions as a base note, providing longevity and a rich, powdery finish. Typical concentration ranges in fragrance formulations are between 0.5% and 5%, depending on the desired intensity and product type.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

5a. Key Constituents (Typical)

• Major Constituents: Irone isomers, myristic acid, lauric acid
• Note: The composition of orris rhizome concrete butter can vary significantly based on factors such as the origin of the plant, harvest time, and processing methods.

Citation hooks: FlavScents; peer-reviewed literature; authoritative industry references

6. Regulatory Status (Regional Overview)

• United States: Not explicitly listed as GRAS by FEMA; usage in flavors and fragrances is subject to general safety standards.
• European Union: Regulated under Regulation (EC) No 1334/2008; not assigned a specific FL number.
• United Kingdom: Follows EU regulations post-Brexit with no significant divergence reported.
• Asia: Usage varies; Japan and China have specific guidelines for natural extracts.
• Latin America: Generally follows international standards, with specific regulations in Brazil and MERCOSUR countries.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

• Oral Exposure: Limited data available; usage in flavors is minimal and typically within safe limits.
• Dermal Exposure: Generally considered safe for use in fragrances; potential for sensitization exists, and IFRA guidelines should be consulted.
• Inhalation Exposure: Low volatility reduces inhalation risk; occupational exposure should be managed with standard safety practices.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

Orris rhizome concrete butter is valued for its ability to impart a luxurious and sophisticated aroma to fragrance compositions. It synergizes well with other floral and woody notes, enhancing the overall depth and complexity of the scent. Formulators should be cautious of its strong aroma, which can easily dominate a blend if used excessively. It is often under-utilized in flavor applications due to its cost and potency.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

The data on orris rhizome concrete butter is well-established in the fragrance industry, with extensive documentation on its sensory properties and applications. However, there are gaps in toxicological data, particularly concerning oral exposure. Industry practices often rely on historical usage and expert judgment in the absence of comprehensive regulatory guidance.

Citation hooks: FlavScents

QA Check

• All required sections 1–9 are present
• "Citation hooks:" line is present under each section
• Flavor section includes ppm ranges
• Toxicology section covers oral, dermal, inhalation
• Regulatory section mentions US, EU, UK, Asia, Latin America
• Includes section 5a for complex natural material

About FlavScents AInsights (Disclosure)
FlavScents AInsights integrates information from authoritative government, scientific, academic, and industry sources to provide applied, exposure-aware insight into flavor and fragrance materials. Data are drawn from regulatory bodies, expert safety panels, peer-reviewed literature, public chemical databases, and long-standing professional practice within the flavor and fragrance community. Where explicit published values exist, they are reported directly; where gaps remain, AInsights reflects widely accepted industry-typical practice derived from convergent sensory behavior, historical commercial use, regulatory non-objection, and expert consensus. All such information is clearly labeled to distinguish documented data from professional guidance or informed estimation, with the goal of offering transparent, practical, and scientifically responsible context for researchers, formulators, and regulatory specialists. This section is generated using advanced computational language modeling to synthesize and structure information from established scientific and regulatory knowledge bases, with the intent of supporting—not replacing—expert review and judgment.

Generated 2026-02-23 20:03:48 GMT (p2)