FlavScents AInsights Entry for (+)-3-carene (CAS: 498-15-7)

1. Identity & Chemical Information

• Common Name(s): (+)-3-carene
• IUPAC Name: (1S,6R)-3,7,7-trimethylbicyclo[4.1.0]hept-3-ene
• CAS Number: 498-15-7
• FEMA Number: 2303
• Other Identifiers: FL No. 02.062
• Molecular Formula: C10H16
• Molecular Weight: 136.24 g/mol

(+)-3-carene is a bicyclic monoterpene with a distinctive structure that includes a cyclopropane ring. This structural feature contributes to its unique odor profile, which is often described as sweet and pungent with a hint of pine. The presence of the cyclopropane ring is significant in determining its reactivity and interaction with other compounds in flavor and fragrance formulations.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

(+)-3-carene is characterized by a sweet, pungent odor with pine-like and woody nuances. It is often used to impart a fresh, clean scent reminiscent of coniferous forests. The compound's intensity is moderate, making it suitable for both impact and background roles in formulations. While specific taste and odor thresholds are not widely documented, its sensory impact is well recognized in the industry.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

(+)-3-carene is naturally found in a variety of essential oils, particularly those derived from coniferous trees such as pine and cedar. It is also present in rosemary and other aromatic plants. The compound is biosynthesized in plants via the mevalonate pathway, a common route for the formation of terpenes. Its presence in natural sources supports its designation as a "natural flavor" or "natural fragrance" component.

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

4. Use in Flavors

In flavor applications, (+)-3-carene is used to impart a fresh, pine-like note, often in conjunction with other terpenes to create complex, natural profiles. It is commonly used in mint, citrus, and herbal flavor categories. Typical use levels in finished food or beverages range from 1 to 10 ppm, with higher concentrations potentially leading to overpowering effects. The compound is relatively stable under normal processing conditions but may degrade under extreme heat or acidic environments.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

(+)-3-carene is utilized in fragrance formulations to provide a fresh, woody, and pine-like aroma. It is commonly found in fragrance families such as fougère, chypre, and woody. Its role can vary from a trace realism enhancer to a prominent impact note. Concentration ranges in formulations are typically low, often less than 1%, due to its potent aroma. It contributes primarily to the top and middle notes due to its moderate volatility.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

6. Regulatory Status (Regional Overview)

• United States: Recognized as GRAS by FEMA for flavor use.
• European Union: Listed under Regulation (EC) No 1334/2008 with FL No. 02.062.
• United Kingdom: Follows EU regulations post-Brexit.
• Asia: Approved for use in Japan and China, with specific limits varying by country.
• Latin America: Generally accepted, but specific regulations may vary by country.

Explicit approvals and harmonized assumptions are common, though country-specific variations exist, particularly in Asia and Latin America.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

For oral exposure, (+)-3-carene is considered safe within the typical use levels in food, with no specific ADI established. Dermal exposure in fragrance applications is generally safe, though it may cause irritation or sensitization in sensitive individuals. IFRA guidelines should be consulted for specific restrictions. Inhalation exposure is typically low risk, but occupational exposure limits should be observed in manufacturing settings. The risk profiles for food and fragrance applications are similar, with no significant differences noted.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

(+)-3-carene is valued for its ability to impart a fresh, natural pine aroma, making it a versatile component in both flavor and fragrance formulations. It synergizes well with other terpenes and can enhance the perception of freshness and cleanliness. Formulators should be cautious of its intensity, as overuse can lead to overpowering effects. It is often underutilized in complex blends where its subtle contributions can enhance overall profile depth.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

The data on (+)-3-carene is well-established, with comprehensive sensory and regulatory information available. Industry practices are well-documented, though specific numeric thresholds for sensory perception are less frequently reported. Known data gaps include detailed toxicological studies specific to inhalation exposure.

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

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 2026-03-05 19:38:05 GMT (p2)