FlavScents AInsights Entry for Laevo-Carveol (CAS: 99-48-9)
1. Identity & Chemical Information
- Common Name(s): Laevo-carveol
- IUPAC Name: (1S,5S)-2-methyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-ol
- CAS Number: 99-48-9
- FEMA Number: Not available
- Other Identifiers: FL number not available; CoE number not available; IFRA reference not available
- Molecular Formula: C10H16O
- Molecular Weight: 152.23 g/mol
Laevo-carveol is a monoterpenoid alcohol characterized by its cyclohexene ring with a hydroxyl group and isopropenyl side chain. The presence of the hydroxyl group contributes to its moderate polarity, influencing its solubility and interaction with other compounds in formulations. The structural features of laevo-carveol are significant for its odor profile, providing a minty and fresh aroma that is often associated with spearmint.
Citation hooks: FlavScents; PubChem; FEMA
2. Sensory Profile
Laevo-carveol is known for its distinctive minty, fresh, and slightly woody aroma. It is often described as having a moderate intensity with a refreshing character that can enhance the perception of cleanliness and freshness in both flavors and fragrances. The compound's odor threshold is not well-documented, but it is typically used as an impact note in formulations where a minty freshness is desired.
In flavor applications, laevo-carveol can impart a cooling sensation, making it suitable for mint-flavored products. Its role as a modifier or impact note is crucial in creating authentic mint profiles in both food and fragrance products.
Citation hooks: FlavScents; peer-reviewed sensory literature
3. Natural Occurrence & Formation
Laevo-carveol naturally occurs in various essential oils, most notably in spearmint oil. It is biosynthesized in plants through the enzymatic conversion of limonene, a common monoterpene precursor. This conversion involves hydroxylation and isomerization processes that are typical in the biosynthetic pathways of many plant-derived terpenoids.
The presence of laevo-carveol in natural sources qualifies it for use in products labeled as containing "natural flavors" or "natural fragrances," provided the extraction and processing methods align with regulatory definitions of natural products.
Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs
4. Use in Flavors
Laevo-carveol is primarily used in mint-flavored products, including chewing gums, candies, and oral care products. It serves as a key component in flavor systems where a fresh, minty note is desired. Typical use levels in finished food or beverage products range from 1 to 20 ppm, depending on the desired intensity and product type. These values are industry-typical estimates, as specific documented ranges are not readily available.
The compound is relatively stable under normal processing conditions but may degrade under extreme heat or acidic conditions, which should be considered during formulation.
Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature
5. Use in Fragrances
In fragrance applications, laevo-carveol is used in a variety of product types, including personal care products, household cleaners, and air fresheners. It contributes to the top and middle notes of fragrance compositions, providing a fresh, minty aroma that enhances the overall scent profile.
Typical concentration ranges in fragrance formulations are qualitative, with laevo-carveol often used in trace amounts to achieve the desired olfactory effect. Its volatility allows it to contribute to the initial impression of a fragrance, while its moderate persistence helps maintain the freshness over time.
Citation hooks: FlavScents; IFRA; fragrance chemistry texts
6. Regulatory Status (Regional Overview)
- United States: Laevo-carveol is not explicitly listed as GRAS by FEMA, but its use in flavors is generally accepted under the broader category of mint flavoring agents.
- European Union: Not specifically listed under Regulation (EC) No 1334/2008; however, it may be used in compliance with general flavoring regulations.
- United Kingdom: Follows EU regulations post-Brexit with no significant divergence reported.
- Asia: Specific regulatory information for Japan, China, and ASEAN countries is limited; typically follows international guidelines for flavor and fragrance use.
- Latin America: Regulatory status in Brazil and MERCOSUR countries is not explicitly documented but generally aligns with international practices.
Citation hooks: FEMA; EFSA; national authority publications
7. Toxicology, Safety & Exposure Considerations
- Oral Exposure: No specific ADI or MSDI values are available for laevo-carveol. It is generally considered safe for use in food products at typical flavoring levels.
- Dermal Exposure: Laevo-carveol is not known to be a significant skin irritant or sensitizer, making it suitable for use in personal care products. However, formulators should consider IFRA guidelines for mint-related compounds.
- Inhalation Exposure: The compound's volatility suggests potential for inhalation exposure, but no specific occupational exposure limits are documented. Standard safety practices should be followed in manufacturing environments.
Citation hooks: EFSA; FEMA; PubChem; toxicology literature
8. Practical Insights for Formulators
Laevo-carveol is valued for its ability to impart a fresh, minty aroma and flavor, making it a versatile component in both flavor and fragrance formulations. It synergizes well with other minty and herbal notes, enhancing the overall freshness and complexity of the product.
Common formulation pitfalls include overuse, which can lead to an overpowering minty character, and instability under extreme processing conditions. Formulators should carefully balance laevo-carveol with other components to achieve the desired sensory profile without compromising product stability.
Citation hooks: FlavScents; industry practice
9. Confidence & Data Quality Notes
The data on laevo-carveol is well-established in terms of its sensory profile and natural occurrence. However, specific regulatory approvals and toxicological data are less documented, requiring formulators to rely on industry-typical practices and general guidelines for mint-related compounds.
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 (not applicable here)
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 2026-03-11 15:53:13 GMT (p2)
