FlavScents AInsights Entry: Eucalyptus Globulus Oil (CAS: 8000-48-4)

1. Identity & Chemical Information

Eucalyptus globulus oil, commonly known as blue gum oil, is a natural complex material derived from the leaves of the Eucalyptus globulus tree. It is not a single compound but a mixture of various constituents. The CAS number for eucalyptus globulus oil is 8000-48-4. While it does not have a specific FEMA number due to its complex nature, it is recognized in various regulatory frameworks. The oil is characterized by its high content of 1,8-cineole, which is a key contributor to its distinctive aroma and functional properties.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

Eucalyptus globulus oil is renowned for its fresh, camphoraceous, and slightly woody aroma. The intensity of its odor is strong, making it a prominent impact note in both flavor and fragrance applications. The oil's sensory profile is dominated by the presence of 1,8-cineole, which imparts a cooling and refreshing sensation. While specific taste and odor thresholds are not well-documented, the oil is typically used in small amounts due to its potent aroma.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

Eucalyptus globulus oil is naturally sourced from the leaves of the Eucalyptus globulus tree, primarily found in Australia. The oil is extracted through steam distillation, a process that preserves its volatile constituents. As a natural product, it qualifies for "natural flavor" or "natural fragrance" designations, depending on the context of use. The composition of the oil can vary based on factors such as geographic origin, climate, and harvest time.

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

4. Use in Flavors

In flavor applications, eucalyptus globulus oil is used to impart a fresh, cooling sensation, often in minty or herbal flavor profiles. It is commonly found in confectionery, oral care products, and certain beverages. Typical use levels in finished products range from 5 to 50 ppm, with higher concentrations potentially leading to overpowering effects. The oil is relatively stable under normal processing conditions but may degrade under prolonged exposure to heat and light.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

Eucalyptus globulus oil is a versatile component in fragrance formulations, contributing to the freshness and vibrancy of the scent profile. It is frequently used in personal care products, household cleaners, and air fresheners. The oil serves as a top note due to its high volatility, providing an immediate burst of freshness. Typical concentration ranges in fragrance products are from 0.1% to 2%, depending on the desired intensity and product type.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

5a. Key Constituents (Typical)

The primary constituent of eucalyptus globulus oil is 1,8-cineole, which can constitute up to 70-85% of the oil. Other notable constituents include alpha-pinene, limonene, and p-cymene. The exact composition can vary significantly based on factors such as the geographical origin of the eucalyptus trees and the distillation process used.

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

6. Regulatory Status (Regional Overview)

In the United States, eucalyptus globulus oil is generally recognized as safe (GRAS) for flavor use by FEMA. In the European Union, it is regulated under Regulation (EC) No 1334/2008 and has an assigned FL number. The United Kingdom follows similar regulations post-Brexit. In Asia, countries like Japan and China have specific guidelines for its use in food and cosmetics. In Latin America, regulations may vary, with Brazil and MERCOSUR countries having their own standards.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

Eucalyptus globulus oil is considered safe for use in food and fragrance applications when used within recommended limits. Oral exposure is generally low due to its strong flavor, with an acceptable daily intake (ADI) not specifically established but considered safe at typical use levels. Dermal exposure in fragrances is subject to IFRA guidelines, which recommend limits to prevent irritation and sensitization. Inhalation exposure is generally safe, but occupational exposure should be monitored to prevent respiratory irritation.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

Eucalyptus globulus oil is valued for its strong, refreshing aroma and versatility in both flavor and fragrance formulations. It synergizes well with other minty and herbal notes, enhancing the overall freshness of a product. Formulators should be cautious of its potency, as overuse can lead to overpowering effects. It is often underutilized in complex blends where its distinctive aroma can provide a unique twist.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

The data on eucalyptus globulus oil is well-established, with extensive documentation on its sensory properties and regulatory status. While industry practices are generally consistent, some variability exists in composition due to natural factors. Known data gaps include specific taste and odor thresholds, which are not well-documented but can be inferred from industry experience.

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
• If complex natural material: includes section 5a

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 2026-07-08 07:12:53 GMT (p2)