| CAS (Single) | 80-56-8 |
| FEMA | 2902 |
| EINECS | 201-291-9 |
| Synonyms |
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| 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, |
Citation hooks: FlavScents; PubChem; FEMA
Alpha-pinene is known for its distinctive pine-like aroma, often described as fresh, woody, and resinous. It has a moderate intensity and is a key impact note in many natural and synthetic fragrance compositions. The odor threshold of alpha-pinene is relatively low, making it effective even at minimal concentrations. It is typically used to impart a fresh, green, and uplifting character to both flavors and fragrances.
Citation hooks: FlavScents; peer-reviewed sensory literature
Alpha-pinene is widely found in nature, predominantly in coniferous trees such as pines, spruces, and firs. It is a major component of turpentine oil and is also present in rosemary, eucalyptus, and other aromatic plants. Alpha-pinene is biosynthesized in plants via the mevalonate pathway, which is part of the larger terpenoid biosynthesis pathway. Its natural occurrence and formation make it a candidate for "natural flavor" or "natural fragrance" designations.
Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs
Alpha-pinene is used in a variety of flavor applications, including mint, citrus, and herbal profiles. It serves as a functional component to enhance freshness and complexity. Typical use levels in finished food or beverage products range from 0.1 to 20 ppm, depending on the desired intensity and the specific application. It is relatively stable under normal conditions but can oxidize when exposed to air, which may alter its flavor profile.
Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature
In fragrances, alpha-pinene is utilized across multiple fragrance families, including fougère, woody, and citrus. It acts as a modifier and impact note, providing a fresh, uplifting top note. Typical concentration ranges in fragrance formulations are from trace amounts up to 5%, depending on the desired effect. Its volatility classifies it as a top note, contributing to the initial impression of a fragrance.
Citation hooks: FlavScents; IFRA; fragrance chemistry texts
Citation hooks: FEMA; EFSA; national authority publications
Alpha-pinene is considered safe for use in both flavor and fragrance applications when used within recommended limits. For oral exposure, it has a high margin of safety with no specific ADI established, but typical use levels are well below any concerning thresholds. Dermal exposure in fragrance use is generally safe, though it may cause mild irritation or sensitization in sensitive individuals. Inhalation exposure is primarily relevant for occupational settings, where adequate ventilation is recommended to minimize risks.
Citation hooks: EFSA; FEMA; PubChem; toxicology literature
Alpha-pinene is valued for its ability to impart a fresh, natural character to formulations. It synergizes well with other terpenes and citrus components, enhancing the overall complexity and freshness. Formulators should be cautious of its potential to oxidize, which can lead to off-notes. It is often under-utilized in complex blends where its fresh character can be overshadowed by heavier components.
Citation hooks: FlavScents; industry practice
The data on alpha-pinene is well-established, with comprehensive documentation available from authoritative sources. While industry practices are generally consistent, some variability in natural sources can lead to differences in sensory profiles. Regulatory frameworks are harmonized across major regions, though specific concentration limits may vary.
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 2026-03-26 17:16:49 GMT (p2)
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