2-AMYL-5 OR 6-KETO-1,4-DIOXANE
2-AMYL-5 OR 6-KETO-1,4-DIOXANE, also known by related dioxane-based synonyms, is an organic compound used as a food flavoring agent evaluated internationally by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) with a FEMA GRAS designation within flavor industry evaluation systems.
What It Is
2-AMYL-5 OR 6-KETO-1,4-DIOXANE is an organic chemical classified within the 1,4-dioxan-2-one family of compounds, identified by the CAS number 65504-96-3. This compound has also been described under a variety of alternative names and synonyms that reflect its structural features and functional group placements, including 5 (or 6)-pentyl-1,4-dioxan-2-one and related positional keto derivatives. These synonyms capture a mixture of closely related isomeric forms that share a common dioxane ring with an alkyl side chain. The compound is recognized in flavor industry inventories by a FEMA number (2076) and is associated with a JECFA number (1485) from evaluations by international bodies responsible for food additive safety. 2-AMYL-5 OR 6-KETO-1,4-DIOXANE functions as a flavoring agent or adjuvant, meaning that it contributes to the organoleptic profile of food products by imparting specific sensory characteristics or by supporting other flavor components in the formulation. At a molecular level, 2-AMYL-5 OR 6-KETO-1,4-DIOXANE is a colorless liquid with a molecular formula of C9H16O3, generally characterized by a fruity or winey odor in solution at low percentages. This sensory profile makes it amenable to use in a range of food categories that benefit from fruit, wine, or ethereal notes. The compound’s chemical nature as a cyclic ester or lactone places it in a structural class that often exhibits both volatility and reactivity sufficient to produce nuanced flavor impressions at low concentrations. Within the context of flavor chemistry, its structural ring and keto functionality contribute to how it interacts with taste receptors and olfactory systems, which is an area of interest for food scientists developing complex flavor blends. The compound’s recognition by flavor industry evaluation systems reflects that it is considered for use at controlled levels within defined food categories based on its sensory properties and safety evaluations.
How It Is Made
The manufacturing or synthesis of chemical flavoring agents such as 2-AMYL-5 OR 6-KETO-1,4-DIOXANE typically involves organic synthesis routes that assemble the cyclic dioxane ring and append the alkyl ketone side chain. While specific proprietary production processes for this substance are industry confidential, general methods for synthesizing 1,4-dioxan-2-one derivatives involve the reaction of precursors that contain ethylene oxide or related epoxides with alcohols such as pentanol under controlled catalytic or base conditions, leading to ring formation and subsequent functional group placement. Such processes rely on established principles of heterocycle formation and esterification chemistry that have been used in fine chemical synthesis for decades. For example, typical steps might involve the condensation of linear diols with ketones or aldehydes in the presence of acid or base catalysts that favor cyclization to a lactone structure, followed by purification protocols to isolate the specific isomeric forms desired for flavor applications. These methods are optimized to achieve high selectivity and yield while minimizing impurities that could affect sensory properties or regulatory compliance. Production of food-grade 2-AMYL-5 OR 6-KETO-1,4-DIOXANE must meet rigorous quality specifications that ensure identity, purity, and absence of harmful contaminants. Producers often follow industry quality standards such as those published in flavor ingredient compendiums and quality specification documents, which detail acceptable limits for residual solvents, byproducts, and related structural analogs. The compound’s FEMA designation implies that manufacturers provide data on production methods, analytical characterization, and consistency of supply to flavor evaluation panels. Purity is particularly important since even trace impurities can alter flavor perception or raise safety concerns. Modern manufacturing facilities use chromatographic and spectrometric control measures to monitor product quality, and formal specifications define criteria such as refractive index, density, and assay results at specified temperatures. These analytical benchmarks support the reproducible use of the compound in food formulations. In addition to synthesis and purification, the preparation of 2-AMYL-5 OR 6-KETO-1,4-DIOXANE for food use includes rigorous documentation for traceability and compliance. Producers compile material safety data sheets (MSDS), certificates of analysis (COA), and technical dossiers that detail physical and chemical properties, safety data, and recommended storage conditions. These documents support both regulatory submissions and purchaser confidence. Storage conditions for this compound generally involve cool, dry, and well-ventilated environments to prevent degradation or quality loss. Given its potential volatility and organic nature, manufacturers and end users implement appropriate handling measures to protect worker safety and ensure consistent compound stability prior to incorporation into flavor blends or food product formulations.
Why It Is Used In Food
Flavoring agents such as 2-AMYL-5 OR 6-KETO-1,4-DIOXANE are used in food formulations to impart specific sensory characteristics that enhance consumer perception of taste and aroma. In the complex landscape of processed food products, individual flavor compounds are rarely used alone. Instead, they function as part of broader flavor systems in which each ingredient contributes unique olfactory or gustatory notes that interact to produce a desired overall flavor profile. 2-AMYL-5 OR 6-KETO-1,4-DIOXANE, with its fruity or winey sensory attributes, is selected for use in products where such nuances complement other components. Its use in food is driven by the need to deliver consistent sensory experiences at low inclusion rates, supporting product differentiation and consumer satisfaction. Within food science and formulation, flavoring agents are chosen based on compatibility with other ingredients, stability under processing conditions, and regulatory acceptance. Substances like 2-AMYL-5 OR 6-KETO-1,4-DIOXANE are evaluated based on their sensory intensity relative to cost, as well as their solubility and volatility. A compound that provides pronounced fruity or ethereal notes at low concentrations can be advantageous because minimal amounts are needed, reducing formulation costs while achieving the desired sensory effect. Moreover, its functional role is not limited solely to contributing a direct flavor impression; some flavoring agents act as adjuvants that modulate or amplify the perception of other flavors, enhancing the complexity and balance of multi-ingredient systems. This can be especially important in categories such as confectionery, beverages, or dairy analogs where layered and nuanced flavor profiles are valued by consumers. Technological considerations also influence why such compounds are incorporated into food. Flavor stability during processing (such as heat treatment, homogenization, or pH changes) is a key factor. The structural features of 2-AMYL-5 OR 6-KETO-1,4-DIOXANE may confer resilience under certain conditions, maintaining sensory integrity throughout manufacturing and shelf life. Food chemists assess these attributes during product development, ensuring that the compound’s inclusion does not result in off-notes, degradation products, or interactions with packaging materials. Regulatory acceptance is equally critical; the compound’s evaluation by international bodies and its presence on flavor inventory lists support its use under defined conditions, providing formulators with confidence that it is appropriate for intended applications.
Adi Example Calculation
To illustrate how acceptable daily intake concepts apply, consider a hypothetical adult consuming food containing multiple flavoring agents, including 2-AMYL-5 OR 6-KETO-1,4-DIOXANE, at levels typical for flavor formulation. If intake estimates for this compound are derived from industry survey methods that calculate maximized daily intake values in the microgram range per person per day, these numbers can be placed in context by comparing them with benchmarks used in toxicological assessments. For example, when expected intake is a fraction of milligrams per day for the general population, and safety margins derived from toxicological studies reach into orders of magnitude higher without adverse effects, the compound’s anticipated exposure remains well below levels associated with concern. While this is an illustration only, it demonstrates that even daily consumption at the high end of expected use does not approach levels that expert committees consider problematic. This example underscores how conservative safety factors built into intake assessments help ensure margin of safety for consumers. It is important to emphasize that this calculation is illustrative and not a recommendation for personal consumption or a defined regulatory limit.
Safety And Health Research
Safety evaluations for flavoring agents encompass assessments of potential toxicological hazards, exposure estimates, and metabolic considerations. For 2-AMYL-5 OR 6-KETO-1,4-DIOXANE, international expert committees reviewed available data on its chemical properties, expected intake levels, and structural features that might influence biological interactions. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) concluded that there was no safety concern at current levels of intake when used as a flavoring agent, based on assessments included in its technical reports. This conclusion reflects an integration of chemical structure analysis, intake estimates, and established frameworks that consider thresholds below which adverse outcomes are not expected. Flavor industry evaluations similarly consider maximized survey-derived daily intakes (MSDI) to estimate typical consumption and potential chronic exposure, balancing these against structural classification schemes that provide context for toxicological concern. Although specific peer-reviewed toxicology studies may not be publicly available for every flavoring agent, the framework used by expert bodies considers surrogate data from structurally related compounds, established toxicological principles, and conservative assumptions to safeguard public health. Evaluators look at endpoints such as genotoxicity potential, metabolic pathways, reproductive toxicity, and chronic exposure effects. The absence of reported adverse effects at anticipated intake levels supports the conclusion that the compound’s use at typical flavoring concentrations is not expected to pose a significant safety risk. Formal safety research often includes in vitro genotoxicity screens, subchronic toxicity studies in animal models, and comparisons with threshold of toxicological concern (TTC) benchmarks that provide context for low-level exposure. Regulatory agencies and expert committees update their conclusions as new data become available, maintaining a dynamic assessment process. Consumer advocacy and independent research may sometimes raise questions about broader systemic effects of flavoring agents, but such discussions emphasize the need for continued research rather than established harm. The rigorous evaluation by recognized international bodies supports the compound’s safety within defined use levels, and ongoing monitoring of scientific literature helps ensure that any emerging evidence relevant to human health is considered in future assessments. Overall, the body of research and expert analysis frames 2-AMYL-5 OR 6-KETO-1,4-DIOXANE as a compound whose anticipated exposure from food use is well below levels associated with adverse outcomes in standard toxicological assessments.
Regulatory Status Worldwide
The regulatory landscape for flavoring agents like 2-AMYL-5 OR 6-KETO-1,4-DIOXANE reflects the evaluations provided by international expert bodies and industry oversight organizations. One of the primary authoritative assessments comes from the Joint FAO/WHO Expert Committee on Food Additives (JECFA), which evaluated this compound and assigned it a JECFA number (1485) under functional class "Flavouring Agent." According to the JECFA database, the evaluation concluded that there is no safety concern at current levels of intake when used as a flavoring agent, based on the available data and intake estimates, and the compound’s specification appears in relevant technical reports and monographs prepared by the committee. This international evaluation provides a scientific basis for regulatory consideration in multiple jurisdictions, though it does not itself constitute a binding national regulation. The presence of a JECFA evaluation indicates that international expert bodies have reviewed the compound’s safety within the context of expected use levels typical of flavoring agents in food products. In the United States, flavoring agents are generally regulated under provisions relating to food additives and flavor substances. While federal regulation does not assign a dedicated CFR section expressly listing every flavoring compound, substances recognized as generally recognized as safe (GRAS) by qualified experts, including those evaluated by industry panels such as FEMA (Flavor and Extract Manufacturers Association), are often included in flavor inventories and may be used in food formulations under defined conditions. FEMA’s evaluation system assigns a FEMA GRAS number (2076) to this compound, indicating its consideration by the flavor industry’s expert panel. Such recognition, when documented and aligned with regulatory expectations, supports manufacturers’ use of the compound in appropriate quantities. The U.S. Food and Drug Administration maintains inventories and provides mechanisms for public access to flavoring substance information, though specific CFR listings for individual compounds may not always be explicitly detailed. In other major regulatory jurisdictions, such as the European Union, flavoring additives are subject to comprehensive evaluations that consider safety data, production volumes, and potential intake. EFSA (European Food Safety Authority) conducts group evaluations of related compounds, and the presence of this substance in EFSA flavor evaluations reflects an industry-level understanding of use levels and safety considerations. National food regulators often refer to JECFA evaluations and local data to determine acceptability within their frameworks. Regulatory acceptance typically involves conditions of use, maximum concentrations in specified food categories, and documentation supporting safe application. International trade and food safety systems use harmonized approaches that incorporate such evaluations, enabling consistent global understanding of how flavoring agents like this compound fit into regulatory contexts.
Taste And Functional Properties
The sensory properties of 2-AMYL-5 OR 6-KETO-1,4-DIOXANE are characterized by fruity and winey aromas that become perceptible at low concentrations in suitable solvent carriers. These olfactory notes suggest a role for the compound in enhancing or rounding out fruit-forward flavor systems, providing depth and nuance to the overall sensory profile. The winey aspect may evoke subtle fermentation-like characteristics in composite blends, which can be beneficial in products seeking a more complex flavor palette without introducing actual fermented ingredients. Sensory studies conducted by industry evaluation panels describe its odor and taste impressions under controlled conditions, where the compound’s intensity and quality are compared with benchmarks for standard flavor classes. Functionally, this compound’s physicochemical properties influence how it behaves in food matrices. Its solubility profile supports use in both lipid-based and aqueous systems, although specific solubility limits depend on formulation parameters such as ethanol content, pH, and co-solvent presence. Typically, flavor chemists optimize inclusion by balancing concentration with matrix characteristics to avoid precipitation or loss of volatile components during processing. Volatility is a double-edged feature: while it enables the compound to reach olfactory receptors during consumption, excessive volatility can lead to losses during heat treatment or extended storage. Therefore, formulators often pair it with balancing agents or encapsulation technologies to protect its integrity until consumption. Chemical stability is another consideration in functional properties. The cyclic lactone structure of 2-AMYL-5 OR 6-KETO-1,4-DIOXANE confers certain degrees of chemical resilience, reducing the likelihood of rapid degradation under moderate processing conditions. However, sensitivity to extremes of pH or prolonged exposure to high temperatures may still necessitate careful formulation strategies. Sensory professionals conduct bench tests to ensure that the compound’s functional behavior aligns with the desired stability profile for specific products. Ultimately, its taste and functional properties are leveraged to achieve both sensory distinction and practical compatibility within complex food systems.
Acceptable Daily Intake Explained
An acceptable daily intake (ADI) is a concept used by food safety authorities to express the amount of a substance that can be ingested daily over a lifetime without appreciable health risk. For many flavoring agents, including 2-AMYL-5 OR 6-KETO-1,4-DIOXANE, expert evaluations focus on typical use levels and exposure rather than establishing a specific numerical ADI. In this context, international expert committees assess data on metabolism, toxicological studies, and expected consumption patterns to determine whether a compound’s use at flavoring concentrations presents a safety concern. When committees conclude that there is no safety concern at current intake levels, it effectively means that any reasonable daily exposure from food is considered acceptable within the established scientific framework. This type of conclusion differs from setting a precise numeric ADI but serves a similar protective purpose by ensuring that usage patterns do not exceed levels of concern. The process of establishing an ADI involves identifying a no-observed-adverse-effect level (NOAEL) from relevant studies, then applying safety factors to account for uncertainties and variability among humans. However, for compounds with anticipated low exposure and lacking evidence of toxicity at plausible intake levels, authorities may conclude that a numerical ADI is not necessary, provided that use is consistent with evaluated conditions. This approach reflects the inherent safety margin built into flavor industry evaluations, which consider conservative estimates of intake and prioritize public health protection. For lay readers, an ADI can be understood as a safety threshold that accounts for lifetime exposure with generous margins to accommodate individual differences. Even when a formal numeric ADI is not established, the underlying evaluations supporting a "no safety concern" conclusion rely on the same principles of toxicological science and protective risk assessment.
Comparison With Similar Additives
When comparing 2-AMYL-5 OR 6-KETO-1,4-DIOXANE with other flavoring agents, it is useful to consider compounds with similar structural classes or functional roles. Many lactone-based or cyclic ester flavoring agents share characteristics such as fruity or sweet aroma notes and are used in comparable food categories. For instance, lactones derived from fatty acids often provide creamy or coconut-like notes and exhibit volatility and solubility properties that influence their use in complex flavor systems. In comparison, dioxane-based lactones like 2-AMYL-5 OR 6-KETO-1,4-DIOXANE provide distinctive fruity-winey impressions that complement rather than duplicate profiles delivered by other lactone derivatives. Another point of comparison involves structural analogs such as 2-hexyl-5 or 6-keto-1,4-dioxane and other alkyl-substituted dioxanones, which vary in side-chain length and, consequently, in sensory impact and volatility. These analogs help flavor chemists fine-tune impressions by selecting compounds that deliver more pronounced or subtle nuances depending on the side chain’s influence on odor profile. Functional comparisons also extend to completely different classes of flavoring agents, such as aldehydes and ketones with straightforward fruity notes or esters that deliver more pronounced sweet impressions. Each class brings its own stability and sensory attributes, and the choice among them depends on the desired end profile in the finished product. Together, these comparisons illustrate how 2-AMYL-5 OR 6-KETO-1,4-DIOXANE fits within a broader palette of flavoring agents that food scientists use to craft nuanced sensory experiences.
Common Food Applications Narrative
In the broad landscape of food applications, 2-AMYL-5 OR 6-KETO-1,4-DIOXANE is incorporated into flavor systems that aim to deliver fruit-forward, complex sensory impressions. Flavor chemists look to this compound in product categories where nuanced aroma profiles enhance consumer experience. For example, in confectionery, fruit-flavored candies benefit from the compound’s ability to reinforce fruit and wine-like notes without overpowering other elements. These products often rely on a combination of natural and synthetic flavor constituents to achieve a consistent profile that aligns with consumer expectations. Within beverage applications, particularly nonalcoholic fruit drinks or flavored waters, small amounts of carefully selected flavoring agents contribute to a refreshing, well-rounded sensory impression. The inclusion of this compound can support flavor continuity across production batches, aiding brands in maintaining consistency in sensory attributes that matter to consumers. In dairy and dairy-alternative systems, such as flavored yogurts or plant-based beverages, flavor balancing is key. Ingredients like 2-AMYL-5 OR 6-KETO-1,4-DIOXANE are used as part of a suite of compounds designed to complement base notes and smooth transitions between initial taste and aftertaste. These complex systems often require an expert understanding of how each component interacts within the matrix, including interactions with proteins, fats, and sweeteners. In bakery applications, where moisture, heat, and Maillard reactions come into play, flavor compounds that can withstand processing stresses while delivering consistent aroma impressions are particularly valuable. The compound’s contribution to fruit or wine-like nuances helps create signature flavor profiles in products such as fruit-filled pastries or sweet baked goods. Condiments and sauces also represent an area where such flavoring agents may be explored. Here, the goal is often to elevate complexity without introducing disruptive notes. A compound with a balanced fruity aroma can enhance condiment profiles that pair with savory elements, providing a subtle background complexity. In snack foods, where taste drivers include sweet and savory cues, careful flavor system design incorporates multiple compounds to achieve a desired consumer response. In these applications, 2-AMYL-5 OR 6-KETO-1,4-DIOXANE may be blended with other components to deliver a rounded experience that aligns with product positioning and consumer taste expectations. Overall, common food applications for this compound illustrate how sophisticated flavoring strategies integrate individual components into coherent sensory profiles that support product success in competitive markets.
Safety & Regulations
FDA
- Notes: Specific CFR listing or FDA approval status not identified; FEMA GRAS evaluation reference exists but not formal FDA additive regulation.
EFSA
- Notes: EFSA E-number status and numeric ADI not confirmed.
JECFA
- Notes: JECFA concluded no safety concern at current intake levels based on evaluation; numeric ADI not established.
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