| CAS (Single) | 80-56-8 |
| FEMA | 2902 |
| EINECS | 201-291-9 |
| Synonyms |
|
| JECFA Food Flavoring | 1329 |
| JECFA Food Additive | N/A |
| DG SANTE Food Flavourings | 01.004 DL-pin-2(3)-ene |
| DG SANTE Food Contact Materials | DL-pin-2(3)-ene |
| FDA UNII | JPF3YI7O34 |
| CoE Number | 2113 |
| XlogP3-AA | N/A |
| Molecular Weight | 136.23752 |
| Molecular Formula | C10 H16 |
| Food Chemicals Codex Listed | Yes |
| Appearance | colorless to pale yellow clear liquid (est) |
| Assay | 97.00 to 100.00 sum of isomers |
| Specific Gravity | 0.85300 to 0.86100 @ 25.00 °C. |
| Lbs/Gal (est) | 7.098 to 7.164 |
| Refractive Index | 1.46300 to 1.46700 @ 20.00 °C. |
| Melting Point | -64.00 to -62.00 °C. @ 760.00 mm Hg |
| Boiling Point | 155.00 to 156.00 °C. @ 760.00 mm Hg |
| Flash Point | 90.00 °F. TCC ( 32.22 °C. ) |
| Acid Value | N/A |
| Vapor Pressure | 4.750000 mmHg @ 25.00 °C. |
| Vapor Density | N/A |
| logP (o/w) | 4.83 |
| Soluble In |
|
| Occurrence |
|
| Organoleptic Notes |
|
| Odor | herbal fresh, camphoreous, sweet, pine, earthy, woody, terpenic, cooling, herbal |
| Flavor | woody woody, pine, terpenic, camphoreous, herbal, spicy, tropical, |
Alpha-pinene is a bicyclic monoterpene with a characteristic pine-like aroma. Its structure includes a reactive double bond, which is significant for its odor profile and reactivity in formulations. The presence of the bicyclic structure contributes to its volatility and distinctive scent, making it a valuable component in both flavor and fragrance applications.
Citation hooks: FlavScents; PubChem; FEMA
Alpha-pinene is known for its fresh, woody, and pine-like aroma, often described as crisp and clean. It is a high-impact note in both flavor and fragrance compositions, providing a refreshing top note. The odor threshold of alpha-pinene is relatively low, allowing it to be perceived at minimal concentrations. It is commonly used to impart a natural pine scent or to enhance the freshness of a formulation.
Citation hooks: FlavScents; peer-reviewed sensory literature
Alpha-pinene is naturally found in the oils of many coniferous trees, notably pine, and is a major component of turpentine. It is also present in rosemary, eucalyptus, and other aromatic plants. Alpha-pinene is biosynthesized in plants via the mevalonate pathway, leading to its classification as a natural flavor or fragrance component. Its presence in essential oils contributes to their designation as "natural" under various regulatory frameworks.
Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs
Alpha-pinene is utilized in flavor formulations to impart a pine-like, resinous note, often used in mint, citrus, and herbal flavors. It serves as an impact note and can enhance the authenticity of natural flavors. Typical use levels in food and beverages range from 0.1 to 20 ppm, depending on the desired intensity and application. Alpha-pinene is relatively stable under acidic conditions but can oxidize, affecting its flavor profile.
Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature
In fragrance applications, alpha-pinene is used across various fragrance families, including woody, fresh, and herbal. It acts as a top note, providing freshness and lift to compositions. Typical concentrations in perfumes range from trace amounts to 1%, depending on the desired effect. Its volatility makes it suitable for top note applications, contributing to the initial impression of a fragrance.
Citation hooks: FlavScents; IFRA; fragrance chemistry texts
Alpha-pinene's regulatory status is well-established, with harmonized approvals across major markets. However, formulators should verify specific country regulations due to potential variability.
Citation hooks: FEMA; EFSA; national authority publications
Alpha-pinene is considered safe for use in food and fragrance applications at typical exposure levels.
The risk profile is consistent across food and fragrance uses, with no significant differences noted.
Citation hooks: EFSA; FEMA; PubChem; toxicology literature
Alpha-pinene is valued for its ability to impart a fresh, natural pine aroma. It synergizes well with other terpenes and citrus notes, enhancing the overall freshness of a formulation. Common pitfalls include overuse, leading to a harsh or resinous character. It is often under-utilized in complex blends where its freshness can be a subtle enhancer.
Citation hooks: FlavScents; industry practice
Data on alpha-pinene is well-documented, with robust sensory and regulatory information available. Industry practices are well-established, though specific use levels may vary by application. Some data gaps exist in regional regulatory nuances, requiring formulators to verify local compliance.
Citation hooks: FlavScents
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 2026-01-19 18:53:27 GMT (p2)
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