AMYL DECANOATE

CAS: 5933-87-9 FLAVORING AGENT OR ADJUVANT

Amyl decanoate is a chemical compound with CAS number 5933-87-9 used as a flavoring agent or adjuvant in food applications, known for its fruity and wine-like sensory properties.

What It Is

Amyl decanoate is an organic chemical compound classified as an ester derived from decanoic acid and pentanol. With the CAS number 5933-87-9, this substance is identified by multiple synonyms including pentyl decanoate, amyl caprate, amyl caprinate, and decanoic acid pentyl ester. It belongs to a group of long-chain fatty acid esters that have been used historically in flavoring and fragrance applications due to their characteristic sensory profiles. In the context of food science and flavor formulation, amyl decanoate functions primarily as a flavoring agent or adjuvant that contributes specific aromatic nuances to food products and flavor mixtures. Chemically, esters such as amyl decanoate are produced through reactions between acids and alcohols, resulting in compounds that often have distinct odors and are useful in enhancing or modifying sensory attributes in flavor systems. The compound is typically encountered as a clear, colorless liquid with a fruity or wine-like aroma, which makes it suitable for representing or reinforcing certain flavor notes in complex food matrices. While its use in fragrances spans a broader range of consumer products, in food science the focus is on its utility in delivering desired flavor impressions. Because of its sensory properties and technical function, amyl decanoate is part of the roster of specialty flavoring substances rather than a bulk commodity ingredient. Its inclusion in food formulations is guided by industry practices and regulatory listings where applicable, which may reference scientific evaluations conducted by expert panels and food safety bodies.

How It Is Made

Amyl decanoate is manufactured through an esterification process, a common synthetic route in organic chemistry where an alcohol reacts with a carboxylic acid to form an ester and water. In the case of amyl decanoate, pentanol (also known as amyl alcohol) is combined with decanoic acid under controlled conditions, often in the presence of an acid catalyst to promote the reaction. This synthesis method yields the ester linkage that defines the structure of amyl decanoate. The industrial production of flavoring esters like amyl decanoate typically involves optimizing factors such as temperature, pressure, and reactant ratios to achieve high purity and yield. After the initial esterification takes place, the crude product is usually subjected to purification steps such as washing, distillation, and sometimes chromatographic techniques to remove residual reactants, catalysts, and by-products. Quality control measures ensure that the final material meets defined specifications for use in flavor applications, including criteria for odor quality, purity, and absence of undesirable contaminants. The resulting product is a clear, colorless liquid that can be formulated into flavor blends or used as a component in complex flavor systems. Given its relatively low volatility compared to lighter esters, amyl decanoate provides longevity and stability of sensory impact in finished products. The manufacturing process described reflects standard practice in flavor chemistry, balancing efficiency with the need for consistent sensory and safety profiles.

Why It Is Used In Food

Amyl decanoate is used in food primarily because of its ability to contribute specific aroma and flavor characteristics that complement or enhance certain products. Flavor chemists select compounds like amyl decanoate to replicate or intensify fruity, wine, or apple-like nuances within flavor formulations. Because sensory perception is a critical aspect of consumer preference, the inclusion of well-characterized esters such as amyl decanoate allows for more precise control over the final flavor profile of beverages and food items. In formulated foods and beverages, complex flavors are often built from combinations of multiple molecules, each contributing unique sensory notes that together create a recognizable or desirable overall experience. Esters are particularly valuable in this context due to their wide range of distinctive odors and relative stability. Amyl decanoate’s fruity and cognac-like scent can enhance certain fruit-forward applications or complement fermented beverage flavors. Furthermore, flavoring agents like amyl decanoate can act as adjuvants, meaning they may improve the effectiveness or perception of other flavor ingredients in a blend. This can be particularly important in low-concentration applications where subtle adjustments can yield significant improvements in overall sensory balance. The use of amyl decanoate and similar esters aligns with industry practices aimed at producing flavorful products that meet consumer expectations for taste and aroma consistency.

Adi Example Calculation

Because an acceptable daily intake (ADI) for amyl decanoate has not been formally established by authoritative bodies, a hypothetical calculation cannot be provided based on a specific numeric ADI. However, it may be helpful to illustrate conceptually how an ADI-based exposure assessment would work if a numeric value were available. For example, if an ADI for a flavoring compound were defined as a certain number of milligrams per kilogram of body weight per day, an estimated daily intake for an individual would be calculated by multiplying that ADI by the person’s body weight. Using a hypothetical adult body weight of 70 kilograms, the calculation would be: Estimated safe intake (mg/day) = ADI (mg/kg/day) x body weight (kg). In practice, risk assessors compare actual or estimated dietary exposures to the ADI to determine whether typical consumption patterns fall below the safety threshold. In the absence of a defined ADI, this framework cannot yield a numeric example specific to amyl decanoate. Instead, the concept underscores that regulatory safety evaluations integrate toxicology data with exposure estimates to inform permissible use levels that protect public health.

Safety And Health Research

Regulatory safety assessments for flavoring compounds generally focus on toxicological endpoints such as genotoxicity, acute and chronic toxicity, reproductive and developmental effects, and metabolic fate. For amyl decanoate, toxicological data specific to this compound may be limited in publically available literature compared with more extensively studied food additives. Without explicit joint evaluations or published monographs from bodies such as JECFA that provide detailed toxicological data—including studies designed to derive an acceptable daily intake—certainty about specific health research findings is limited. Flavoring agents are often evaluated as part of broader chemical classes, and data from structurally related esters can inform general understanding of safety. In the absence of specific hazard classifications under widely recognized systems such as GHS, esters like amyl decanoate are typically considered to have low acute toxicity, although formal evaluations are necessary to confirm this. Regulatory agencies and expert committees consider a range of evidence, including animal studies and in vitro assays, to determine whether a compound poses risk at intended levels of dietary exposure. Given the lack of tailored toxicological monographs for amyl decanoate in major food additive evaluation compendia, explicit conclusions about its safety must be framed cautiously. The compound’s inclusion in inventories of substances used in flavoring suggests that it has been subject to consideration by expert panels, but the absence of defined toxicological thresholds or regulatory numeric standards means that its safety profile is informed by general practice and industry usage rather than specific regulatory benchmarks.

Regulatory Status Worldwide

Amyl decanoate is listed in the U.S. Food and Drug Administration’s Substances Added to Food inventory (formerly known as EAFUS), which catalogs additives and flavoring substances that have been evaluated by expert panels such as FEMA and JECFA for use in food. However, inclusion in this inventory does not by itself constitute an explicit approval or defined permissible use under a specific Code of Federal Regulations (CFR) section, and no distinct FDA regulation number is associated with the compound’s food additive status. The U.S. regulatory position therefore remains that amyl decanoate appears in the inventory but lacks a dedicated direct approval citation in 21 CFR parts for food additives. At the international level, expert bodies such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA) maintain databases of evaluated flavoring and additive specifications, but a specific entry for amyl decanoate with a designated INS number or established acceptable daily intake has not been identified in publicly accessible JECFA specification lists. As such, numerical regulatory values including an official INS designation or ADI are not currently ascertainable from the authoritative FAO/WHO database. In many regions, the use of specific flavoring ingredients is guided by broader food safety frameworks that require evidence of safety and good manufacturing practices rather than predetermined numeric intake limits, especially for flavorings with limited toxicity concerns at typical use concentrations. Regulatory authorities may therefore permit the use of amyl decanoate within flavor applications subject to general safety and labeling requirements, but without formal numeric specifications in additive codices.

Taste And Functional Properties

Amyl decanoate is characterized by a fruity, wine-like aromatic profile that makes it valuable in flavor formulation. Esters such as this one often contribute complex sensory impressions that are difficult to achieve with single-component flavorings. The odor characteristics of amyl decanoate are typically described as reminiscent of apple, brandy, or wine, which can be leveraged to enhance or evoke these sensory cues in food and beverage applications. Sensory professionals use descriptive analysis techniques to assess the contribution of specific esters and integrate them into broader flavor systems. From a functional standpoint, amyl decanoate exhibits properties typical of fatty acid esters: it is relatively stable under normal food processing conditions and has moderate solubility in organic solvents. Its high log P value indicates a preference for nonpolar environments, which can influence how the compound partitions in complex food matrices. This property means that amyl decanoate may exhibit stronger interactions with lipid components and may contribute to sustained aroma release in products with higher fat content. In addition to sensory impact, functional considerations such as stability to heat and pH are relevant when formulating with amyl decanoate. While detailed data on these properties may vary, food scientists generally account for the behavior of flavor esters under processing conditions to ensure that the desired sensory profile is maintained in the final product. Compared with highly volatile aroma compounds, the moderate volatility of amyl decanoate allows it to contribute lasting sensory notes without dissipating rapidly during processing or storage. The balance of aromatic intensity and functional stability makes it a useful ingredient in targeted flavor design.

Acceptable Daily Intake Explained

The concept of acceptable daily intake (ADI) is used by food safety authorities to express the estimate of the amount of a substance in food or drinking water that can be ingested daily over a lifetime without appreciable health risk. An ADI is typically derived from toxicological studies, often conducted in animals, and includes safety factors to account for interspecies differences and human variability. For many flavoring agents, including those with limited toxicity concerns and low-level use, ADIs may not have been explicitly established if comprehensive evaluations are not available or if exposure levels are orders of magnitude below thresholds of concern. In the specific case of amyl decanoate, there is no identified authoritative source that provides a quantifiable ADI value, which reflects limited availability of detailed toxicological evaluations that are publicly accessible. Where ADIs exist for structurally related compounds, they serve as reference points for understanding how regulatory bodies balance safety with functional use, but without a direct reference value for amyl decanoate itself, it is not appropriate to assign a numeric ADI. It is important for consumers and formulators to understand that an ADI is not a recommended intake level but a safety benchmark used in risk assessment and regulatory decisions. In the absence of an established ADI, use of a flavoring compound in food should align with general safety principles and regulatory guidance that ensure exposures remain within ranges considered to be safe based on the best available scientific evidence.

Comparison With Similar Additives

Amyl decanoate can be compared with other ester-based flavoring agents that contribute fruity or aromatic nuances in food applications. Esters such as ethyl acetate and isoamyl acetate are also widely used in flavor systems; ethyl acetate offers a sweet, fruity aroma reminiscent of pear or pineapple, while isoamyl acetate is known for its strong banana-like scent. Compared to these, amyl decanoate tends to provide deeper, winey and cognac-like notes with less volatility. Another comparison is with ethyl butyrate, an ester that imparts bright, fresh fruit aromas often associated with orange or pineapple. While ethyl butyrate is lighter and more volatile, making it suitable for imparting immediate fruity impressions, amyl decanoate’s sensory impact may be more sustained due to its lower volatility. This difference influences how and where each compound is used within complex flavor formulations, with amyl decanoate often contributing background depth rather than the upfront fruity cues supplied by lighter esters. These comparisons illustrate that esters as a class provide a spectrum of sensory properties that flavorists can leverage to build nuanced taste experiences. Each compound’s unique balance of aroma characteristics, volatility, and functional stability informs its selection in product development.

Common Food Applications Narrative

Amyl decanoate is integrated into various flavoring applications where its fruity and wine-like sensory attributes can enhance the overall taste experience. In beverage formulations, it may be used to strengthen notes associated with fermented drinks such as ciders or fruit-forward wines, contributing to a rounded and appealing aromatic profile. Flavorists often combine amyl decanoate with other esters and aldehydes to create depth and complexity in beverage flavors that aim to replicate natural fruit characteristics or mimic the sensory cues of specific alcoholic beverages. In non-alcoholic food products, such as confectionery or baked goods, amyl decanoate may be used in small concentrations to add subtle richness and fruity undertones. The compound’s capacity to evoke sensory impressions similar to natural fruit aromas allows formulators to craft products that resonate with consumer expectations for familiar and enjoyable flavors. Its use can also extend to dairy-based desserts where fruity notes complement creaminess without overpowering the base profile. Because flavor composition is highly nuanced, the incorporation of amyl decanoate is typically part of a broader formulation strategy that balances multiple flavor ingredients. Professionals in the flavor industry rely on extensive sensory evaluation and analytical data to determine the appropriate inclusion levels that achieve the desired effect while ensuring that the final product remains harmonious in taste and aroma.

Safety & Regulations

FDA

  • Notes: FDA inclusion in Substances Added to Food inventory does not equate to specific regulatory approval under a CFR section for this compound.

EFSA

  • Notes: No EFSA E number or ADI found in available authoritative sources.

JECFA

  • Notes: No specific JECFA specification with numeric ADI or INS number was identified in accessible authoritative databases.

Sources

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