FlavScents AInsights Entry for 2-Tridecenal (CAS: 7774-82-5)

1. Identity & Chemical Information

• Common Name(s): 2-Tridecenal
• IUPAC Name: (2E)-tridec-2-enal
• CAS Number: 7774-82-5
• FEMA Number: Not available
• Other Identifiers: FL number not available; CoE number not available; IFRA reference not available
• Molecular Formula: C13H24O
• Molecular Weight: 196.33 g/mol
• Functional Groups and Structure–Odor Relevance: 2-Tridecenal is an unsaturated aldehyde, which contributes to its characteristic odor profile. The presence of the aldehyde group is crucial for its reactivity and sensory properties, often imparting a fatty, citrus-like aroma.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

2-Tridecenal is characterized by its fatty, citrus-like odor, often described as having a waxy, aldehydic quality. It is known for its moderate intensity and diffusion, making it a versatile component in both flavor and fragrance formulations. The compound can serve as an impact note or a background modifier, enhancing the overall realism of a composition. Specific taste and odor thresholds are not clearly reported in the literature, but its sensory impact is well-recognized among professionals.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

2-Tridecenal is found naturally in various plant sources, including citrus fruits and certain essential oils. It can form through enzymatic degradation of fatty acids or as a byproduct of lipid oxidation. Its presence in natural sources supports its designation as a "natural flavor" or "natural fragrance" component, depending on the context of its use.

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

4. Use in Flavors

2-Tridecenal is utilized in flavor formulations to impart citrus and fatty notes, commonly used in citrus-flavored beverages, confectionery, and baked goods. Its functional role in flavor systems includes acting as an impact note or a background enhancer. Typical use levels in finished food products range from 0.1 to 5 ppm, with industry-typical values often guiding formulation practices. Stability considerations include moderate resistance to heat and pH variations, though it may be prone to oxidation.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

In fragrance applications, 2-Tridecenal is used across various fragrance families, including citrus, floral, and green compositions. It serves as a modifier or impact note, contributing to the top and middle notes of a fragrance. Typical concentration ranges are qualitative, with usage often dictated by the desired intensity and character of the fragrance. Its volatility allows it to contribute significantly to the initial impression of a fragrance.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

6. Regulatory Status (Regional Overview)

• United States: Not explicitly listed as FEMA GRAS; usage in flavors and fragrances is subject to general safety evaluations.
• European Union: Not specifically listed under Reg. (EC) No 1334/2008; assumed to be covered under general flavoring regulations.
• United Kingdom: Post-Brexit regulations align with EU standards; no specific divergence noted.
• Asia: Limited specific data; generally follows international safety and usage guidelines.
• Latin America: Regulatory status varies; typically aligns with international standards, but specific approvals may differ.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

For oral exposure, specific ADI or MSDI values for 2-Tridecenal are not clearly reported, but it is generally considered safe at typical flavor use levels. Dermal exposure in fragrance applications should consider potential irritation or sensitization, although specific IFRA guidelines are not available. Inhalation exposure is relevant due to its volatility, with occupational safety measures recommended in manufacturing settings. Risk profiles may differ slightly between food and fragrance applications due to differing exposure routes.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

2-Tridecenal is valued for its ability to impart a fresh, citrus-like note, enhancing both flavor and fragrance compositions. It synergizes well with other citrus and aldehydic compounds, though care must be taken to avoid overpowering the formulation. Common pitfalls include overuse, leading to an overly waxy or fatty character. It is often under-utilized in complex formulations where subtlety is required.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

Data on 2-Tridecenal is well-established in terms of its sensory profile and natural occurrence. However, specific regulatory approvals and toxicological data are less documented, relying on industry-typical practices and general safety evaluations. Known data gaps include precise usage thresholds and comprehensive regulatory listings.

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 2026-07-07 12:46:17 GMT (p2)