FlavScents AInsights Entry for Diallyl Polysulfides (CAS: 72869-75-1)

1. Identity & Chemical Information

• Common Name(s): Diallyl polysulfides
• IUPAC Name: Not applicable as this is a mixture of compounds
• CAS Number: 72869-75-1
• FEMA Number: Not available
• Other Identifiers: Not available
• Molecular Formula and Molecular Weight: Not applicable as this is a mixture of compounds
• Functional Groups and Structure–Odor Relevance: Diallyl polysulfides are characterized by the presence of multiple sulfur atoms, which contribute to their distinctive odor profile. The sulfur groups are crucial for the material's pungent and garlic-like aroma.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

Diallyl polysulfides are known for their strong, pungent odor reminiscent of garlic and onions. The intensity of the aroma can vary depending on the specific polysulfide composition, with some variants exhibiting a more pronounced sulfurous note. These compounds are typically used as impact notes in flavor formulations, providing a characteristic sharpness and depth. The taste and odor thresholds for diallyl polysulfides are not well-documented, but they are generally recognized for their potent sensory impact even at low concentrations.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

Diallyl polysulfides naturally occur in Allium species, such as garlic and onions. They are formed through enzymatic reactions when these plants are crushed or chopped, leading to the breakdown of alliin into allicin, which further decomposes into various polysulfides. These compounds are significant in the context of "natural flavor" designations due to their natural origin and formation pathways.

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

4. Use in Flavors

Diallyl polysulfides are primarily used in savory flavor applications, such as garlic and onion flavors, soups, sauces, and meat products. They serve as impact notes, providing authenticity and depth to flavor profiles. Typical use levels in finished food products range from 0.1 to 10 ppm, depending on the desired intensity and the specific application. These compounds are relatively stable under heat but can be prone to oxidation, which may alter their sensory characteristics.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

In fragrance applications, diallyl polysulfides are used sparingly due to their potent odor. They are typically found in trace amounts in fragrance compositions where a sulfurous note is desired, such as in certain niche or avant-garde perfumes. These compounds contribute primarily to the top notes due to their high volatility. Typical concentration ranges are qualitative, as they are often used in minimal amounts to achieve the desired effect.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

6. Regulatory Status (Regional Overview)

• United States: Diallyl polysulfides are not explicitly listed as FEMA GRAS, but components like diallyl disulfide are recognized.
• European Union: Under Regulation (EC) No 1334/2008, specific polysulfides may be used in food flavorings, but comprehensive listings are limited.
• United Kingdom: Post-Brexit regulations align closely with EU standards, though specific listings may vary.
• Asia: Regulatory status varies, with Japan and China having specific guidelines for sulfur-containing compounds.
• Latin America: Brazil and MERCOSUR countries may have specific regulations, but detailed listings are not readily available.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

For oral exposure, diallyl polysulfides are generally considered safe at low concentrations typical of flavor use, though specific ADI or MSDI values are not well-documented. Dermal exposure in fragrance applications may pose irritation or sensitization risks, necessitating careful formulation and testing. Inhalation exposure is primarily a concern in occupational settings, where adequate ventilation and protective measures are recommended. The risk profiles differ between food and fragrance applications, with higher scrutiny in dermal and inhalation contexts.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

Diallyl polysulfides are valued for their ability to impart a realistic garlic or onion note to flavor and fragrance compositions. They synergize well with other sulfur-containing compounds and can enhance the authenticity of savory profiles. Formulators should be cautious of their potent odor, which can easily overpower a blend if not used judiciously. Common pitfalls include overuse, leading to an undesirable sulfurous intensity, and underuse, resulting in a lack of impact.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

The data on diallyl polysulfides is well-established in terms of sensory characteristics and natural occurrence. However, there are gaps in specific regulatory listings and toxicological data, particularly regarding comprehensive safety evaluations. Industry practices often rely on empirical knowledge and historical use patterns, which may not be fully documented in scientific literature.

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 2026-03-27 17:36:35 GMT (p2)