ALLYL 2-FUROATE

CAS: 4208-49-5 FLAVORING AGENT OR ADJUVANT

ALLYL 2-FUROATE is a synthetic flavoring agent used in food formulations, particularly for imparting fruity and caramellic sensory notes; it has been evaluated by international expert committees for safety.

What It Is

ALLYL 2-FUROATE is an organic ester belonging to the class of furan derivatives that is used as a flavoring agent or adjuvant in food products. It is identified by the Chemical Abstracts Service Registry Number 4208-49-5 and has multiple synonyms reflecting its structural and functional nomenclature. As a flavoring substance, it contributes specific sensory attributes such as fruity or caramellic notes at very low use levels. Chemically, it is referred to by its IUPAC equivalent 2-propenyl 2-furoate and is recognized in food chemicals inventories and international additive reference lists. Its technical function in foods is strictly as a flavor ingredient rather than a nutrient or preservative. ALLYL 2-FUROATE does not carry an E-number for use within the European Union regulatory framework, and there is no direct United States Code of Federal Regulations section that authorizes its use as a food additive under specific conditions. Instead, its safety and use in food are informed by expert evaluations from international committees and flavor industry panels. The generically recognized identifiers and flavor industry numbers such as FEMA number 2030 and JECFA number 21 are commonly d in technical databases, but they do not substitute for formal additive approval under statutory food additive pathways. Because it is not a primary nutrient or additive category on its own, ALLYL 2-FUROATE is typically discussed within the context of flavoring substance inventories and not as a standalone regulated nutrient or preservative. This definition section sets the stage for understanding how this compound functions technically and administratively within food science and regulation.

How It Is Made

Production of compounds like ALLYL 2-FUROATE typically involves laboratory organic synthesis techniques that couple furancarboxylic acid derivatives with allylic alcohol components under controlled conditions. The chemistry relies on esterification processes where a carboxylic acid (in this case a furan carboxylic acid) is reacted with an alcohol to form the corresponding ester linkage under catalysis. Such manufacture is performed to high purity specifications when targeting food flavor use, although exact proprietary methods vary among specialty ingredient producers. Commercial manufacture for food use is conducted under regulatory guidance to ensure that the resulting compound meets safety, purity, and identity criteria expected by flavor houses and ingredient formulators. Manufacturers will source high-grade raw materials and apply purification steps to remove residual reactants or contaminants. Specifications may be set by international compendia for analytical identity and quality, though such detailed standards are often accessible to ingredient technologists and not always public. The resulting product is a colorless to pale straw-colored liquid with a characteristic odor profile, and it is stored in conditions that minimize oxidation or degradation. Because it is used at low levels in flavor applications, attention to batch uniformity and sensory consistency is a priority for production quality. As a synthesized ester, it does not undergo fermentative or enzymatic extraction processes common to natural food ingredients but instead derives from targeted chemical synthesis approaches used in fine chemical manufacturing.

Why It Is Used In Food

Flavoring agents such as ALLYL 2-FUROATE are added to foods to enhance or modify sensory experiences for consumers. In this case, the compound’s specific aromatic qualities—described as fruity, caramellic, or jam-like in professional flavor descriptors—contribute to the overall flavor profile of beverages, confectionery items, baked goods, and other formulations where such sensory cues are desirable. Flavor chemists incorporate this additive because of its ability to produce consistent sensory effects at low concentrations, complementing other flavors without overwhelming the base food product. It acts synergistically with other flavor compounds to build complexity in formulated products. Its inclusion in flavoring blends allows product developers to achieve target taste profiles that align with consumer expectations for specific categories, such as fruit-flavored goods, sweet baked treats, or beverage nuances. Additionally, such flavoring agents are typically selected based on stability under processing conditions. ALLYL 2-FUROATE’s chemical structure affords sufficient resilience to heat and pH variations encountered during food processing, although formulators must still assess its performance in each unique matrix. By serving as an adjuvant, it can also help other flavors achieve a coherent and appealing sensory outcome.

Adi Example Calculation

An illustrative example often used to explain ADI involves a hypothetical body weight and a benchmark intake level for a compound. For instance, if a flavoring agent had an ADI established at a certain amount per kilogram of body weight, one could multiply that value by an individual’s body weight to estimate a theoretical daily intake threshold. Because the expert evaluation for ALLYL 2-FUROATE concluded that no safety concern exists at current intake levels, this example demonstrates the concept rather than providing a regulatory limit for this specific compound. The actual values used in formal ADI calculations depend on detailed toxicological data and are derived by expert committees to include conservative safety margins.

Safety And Health Research

Safety evaluations of flavoring substances like ALLYL 2-FUROATE focus on the chemical’s toxicological profile and likely dietary exposure levels based on typical use concentrations in food. International expert review panels, such as those convened by JECFA, examine available studies on metabolism, genotoxic potential, subchronic toxicity, and other relevant endpoints. The consensus from these reviews is that at the low levels encountered in food products, there is no indication of safety concerns for the general population when used as intended. Because such flavoring chemicals are incorporated at trace levels, direct clinical or population health studies are uncommon; instead, safety assessments rely on foundational toxicology research, structural activity assessments, and exposure modeling to estimate the margin of safety. Expert committees use this information to determine if there is any cause for concern at expected intake levels. In this case, the JECFA evaluation concluded that the compound’s use does not raise safety concerns at typical intake levels, which implies a sufficient safety margin for its flavoring applications. It is important to note that regulatory safety assessments differentiate between high-dose experimental exposures and the very low exposures associated with flavor use, and they also consider the compound’s metabolic fate. Esters such as ALLYL 2-FUROATE are generally subject to enzymatic hydrolysis and normal metabolic pathways encountered for similar small organic esters. The absence of specific adverse findings in available data supports the expert conclusion of safety under normal conditions of use.

Regulatory Status Worldwide

International expert bodies have evaluated ALLYL 2-FUROATE for safety in the context of flavor use. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) assigned it JECFA number 21 and, after evaluation, concluded that it poses no safety concern at current levels of intake when used as a flavouring agent. This conclusion is based on expert review of relevant toxicological and exposure data and is documented in JECFA reporting. The nature of such evaluations reflects a scientific consensus on low-risk under typical use conditions rather than an explicit numeric acceptable daily intake value or E-number assignment, and the expert summary is publicly available from the organization’s database. In the United States, the ingredient appears in food ingredients inventories such as the Substances Added to Food (formerly known as EAFUS) where it is listed with its CAS number and technical function. However, inclusion in such inventories reflects that it has been evaluated by entities like the Flavor and Extract Manufacturers Association (FEMA) and international committees; it does not alone constitute direct approval under a specific section of the Code of Federal Regulations. FDA’s regulatory framework distinguishes between approved food additives requiring formal petitions and those recognized as safe by qualified expert panels. In this case, the FEMA evaluation and JECFA conclusion support its use in flavoring but do not equate to a CFR food additive authorization. For regions such as the European Union, this compound does not carry an E-number in standardized lists for food additives. European assessments have historically included flavoring substance evaluations within broader flavoring groups, but specific EU regulatory opinions or numeric limits have not been established for this substance in additive lists currently supported by EFSA. Consequently, regulatory status worldwide is rooted in expert review and inventory recognition rather than discrete numeric use permissions in statutory additive schedules.

Taste And Functional Properties

From a sensory perspective, ALLYL 2-FUROATE is characterized by a combination of fruity and caramellic notes that can evoke impressions of jam, cooked fruit, or similar complex sweet aromas. Flavor scientists describe such compounds in terms of their impact at trace levels, where even minute quantities can influence the perceived flavor of the overall formulation. These sensory properties are leveraged in flavor blending to support target tastes without contributing sweetness itself. Functionally, flavoring agents like this ester are generally soluble in alcohol and compatible with many flavor carriers, making them versatile in multiple food and beverage systems. They may also exhibit modest volatility, contributing to aroma perception upon consumption. However, formulators assess their stability under specific conditions, as prolonged heat or light exposure can alter their sensory characteristics. Because the compound is used at very low concentrations typical for flavor ingredients, its functional properties do not significantly alter the nutritional or physical stability of the food matrix. Instead, its role is primarily sensory enhancement. Technical documentation for such flavor components typically includes sensory descriptors, solubility characteristics, and guidance for use levels to achieve desired flavor contributions without off-notes.

Acceptable Daily Intake Explained

Regulators and expert committees use the concept of an acceptable daily intake (ADI) to describe a level of daily exposure to a substance that is considered safe over a lifetime. An ADI is typically derived from toxicological data by applying safety factors to account for uncertainties when extrapolating from experimental systems to humans and between individuals. For many flavoring agents such as ALLYL 2-FUROATE, formal numeric ADI values are not always assigned; instead expert panels may conclude that there is no safety concern at current levels of intake when used as intended. Such conclusions reflect that exposure is expected to be orders of magnitude below levels that have shown adverse effects in experimental systems, and thus an explicit numeric ADI is not necessary for regulatory clarity. In practice, this means that under normal usage patterns in food products, consumer exposure to this compound remains within a range that experts consider acceptable and safe based on the best available evidence. Consumers do not need to calculate their personal intake, as formulators and regulators ensure that use levels in food are low and consistent with established safety evaluations.

Comparison With Similar Additives

Flavoring esters like ethyl butyrate, methyl anthranilate, and benzyl acetate are examples of structurally related compounds that perform similar functions in food systems, contributing fruity or aromatic notes. ALLYL 2-FUROATE differs in its specific sensory signature, with a more pronounced caramellic nuance compared with more straightforward fruity esters. In contrast, esters such as ethyl butyrate are predominantly associated with pineapple or citrus-like notes. In terms of safety evaluation, many small ester flavoring agents undergo the same general assessment processes by expert committees like JECFA, which consider structural analogies, metabolic pathways, and exposure expectations to reach conclusions about safety concerns. While each compound’s sensory impact and use context may vary, regulatory frameworks treat them similarly in terms of exposure evaluation and safety margins. These comparisons help technologists select appropriate flavor building blocks based on desired sensory outcomes and regulatory histories without implying differences in fundamental risk when used appropriately.

Common Food Applications Narrative

Flavoring agents like ALLYL 2-FUROATE find their place in a wide variety of flavored foods and beverages where nuanced sensory profiles are desired. In beverages, including soft drinks, fruit-flavored drinks, and cultured beverages, such compounds help bridge the aroma and taste experience, delivering consistent fruit-like and sweet aromatic cues. Their use is carefully calibrated so that the resulting flavor remains harmonious with the base beverage and other flavor components. In confectionery applications, such as candies, chocolates, and sugar-based treats, flavor esters contribute to the overall sensory appeal by adding depth to fruit or caramel forward profiles. Their presence is particularly valued in products that aim to evoke cooked fruit, jam, or pastry-like impressions, where their complex sensory profile supports consumer expectations. Baked goods also benefit from carefully designed flavor systems. In cookies, cakes, and other bakery items, flavoring agents like ALLYL 2-FUROATE can help maintain or enhance desirable sensory notes that might be otherwise diminished during heat processing. These flavor additives are used in conjunction with other ingredients to achieve balanced profiles that withstand baking conditions while still delivering recognizable taste cues. Beyond these categories, other flavored foods such as dairy desserts, gelatin-based snacks, and even savory formulations with sweet accents may integrate this type of compound within a broader flavor blend. The focus remains on sensory enhancement; the additive does not contribute nutritional value but instead augments the eating experience. Because such compounds are used at trace levels, they are part of a larger palette of flavor building blocks that food technologists select to match product goals and consumer preferences.

Safety & Regulations

FDA

  • Notes: FDA has not published a specific CFR section for this additive; inventory inclusion reflects expert evaluations not direct approval.

EFSA

  • Notes: EFSA has not assigned a specific E-number or numeric ADI for this flavoring.

JECFA

  • Notes: JECFA concluded no safety concern at typical intake but did not provide a numeric ADI on the d summary.

Sources

Comments

No comments yet. Be the first to share!