What It Is
3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN is an organic compound identified by the CAS number 70786-44-6 with a bicyclic heterocyclic structure derived from benzofuran. It is recognized in flavor libraries and flavoring ingredient inventories as a compound used for its aromatic and sensory properties, particularly with herbal and dill-like motifs that can contribute to the olfactory and gustatory profile of food products. The compound’s structure comprises a hexahydrobenzofuran core with methyl substituents contributing to its chemical behavior and volatility, and it is one of many structurally similar heterocyclic compounds that can be synthesized or isolated for use in flavor applications. In food science and regulatory contexts, this substance is categorized as a flavoring agent or adjuvant, indicating that it is intended to provide a specific taste or aroma to foods rather than to serve as a nutritional ingredient or preservative. Its identification in flavor inventories such as the Substances Added to Food listing maintained by the United States Food and Drug Administration suggests that it is recognized by industry and regulatory bodies for its utility in food formulation, though precise allowances and conditions of use are governed by regulatory evaluations rather than explicit numeric limits in all cases. The compound may be referenced by several alternate names and identifiers, reflecting its chemical nomenclature and registry entries used in scientific and regulatory databases.
How It Is Made
The production of 3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN is typically achieved through chemical synthesis pathways common to heterocyclic flavor compounds. At a high level, the synthesis involves constructing the benzofuran core and introducing the appropriate methyl substituents under controlled conditions. Specific catalyst systems and reactants will depend on the exact synthetic route, but general approaches to produce substituted benzofurans rely on cyclization reactions of precursor molecules that integrate oxygen and carbon frameworks. Purification steps such as distillation, crystallization, or chromatography are usually employed to achieve the desired chemical and sensory purity suitable for flavor applications. In industrial settings, quality control ensures that the substance meets defined purity and safety specifications before incorporation into food flavor formulations. These specifications may include limits on residual reagents, byproducts, solvent traces, and isomeric purity. The synthetic production of flavor compounds like this one is typically carried out by specialized chemical manufacturers with expertise in flavor and fragrance chemistry. Because the compound is often used in extremely low concentrations in final food products, the manufacturing and processing steps emphasize minimizing contaminants and ensuring consistent organoleptic characteristics. The exact production method can vary by manufacturer and may incorporate proprietary steps, but the general principles involve organic synthesis and standard purification techniques used in the flavor industry.
Why It Is Used In Food
The primary reason 3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN is used in food is to impart or enhance specific sensory attributes that are desirable in certain formulations. Flavoring agents are critical in creating consumer-appealing products, and subtle aromatic compounds contribute nuanced notes that help balance or accentuate the overall flavor profile. In particular, this compound’s herbaceous, dill-like notes make it suitable for savory applications where a fresh, herbal aroma is part of the desired sensory experience. Such flavoring agents are used by food scientists to achieve consistency across batches, to recreate flavors comparable to natural counterparts, or to complement other ingredients in complex blends. It functions as part of a broader palette of flavor compounds that, in combination, create recognizable taste experiences. In many cases, these compounds are more stable, consistent, or cost-effective than using botanical extracts alone, and they allow formulators to fine-tune sensory notes with precision. Because consumer expectations for flavor are high in categories ranging from condiments to snacks to prepared meals, compounds like this one play a specialized and technical role in achieving those outcomes.
Adi Example Calculation
Because no specific numeric acceptable daily intake has been established for 3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN in authoritative sources, an exact calculation example cannot be provided based on established regulatory values. However, illustrative calculations for flavoring agents generally follow a standard approach: if hypothetical ADI data were available, the calculation would involve multiplying the ADI value by an individual’s body weight to estimate the maximum amount of the substance that could be consumed daily without appreciable health risk. For example, if an ADI were hypothetically 1 mg/kg body weight per day (note that this is a purely hypothetical figure and not a known regulatory value for this compound), then for a person weighing 70 kilograms, the daily intake would be 70 milligrams. In the absence of a defined ADI, such calculations remain conceptual and do not represent regulatory guidance. Instead, industry and regulators focus on ensuring that actual use levels in food products result in consumer exposures that are well below any levels of concern identified in toxicological evaluations.
Safety And Health Research
Safety evaluations for flavoring agents such as this one generally involve assessments of toxicological endpoints including acute toxicity, genotoxicity, chronic exposure studies, and metabolic fate. Regulators and expert panels review available studies and data on similar compounds to determine whether there is evidence of adverse effects at levels relevant to food use. The classification of this compound within flavoring group evaluations reflects that it has been considered in the context of structurally related substances, with expert judgment used to assess potential risks. Because flavoring agents are used at very low concentrations in foods, exposure levels are typically orders of magnitude below those that trigger concern in toxicological studies. Studies may include in vitro assays for mutagenicity, animal studies for systemic effects, and estimations of dietary intake based on typical use levels. If sufficient data support a conclusion that there are no safety concerns at intended use levels, regulatory bodies may permit use without specific numeric limits or establish conditions of use. The absence of explicit numeric acceptable daily intake values in some regulatory documents indicates that comprehensive data may not be available or that expert bodies rely on broader group-based evaluations rather than compound-specific limits.
Regulatory Status Worldwide
Regulatory assessment of flavoring agents like 3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN involves evaluation by expert bodies to determine conditions of safe use in foods. In the United States, the Food and Drug Administration (FDA) includes this compound in the Substances Added to Food inventory, which documents substances that are recognized for use as flavoring agents or adjuvants; however, FDA does not provide a specific Code of Federal Regulations (CFR) listing with numeric limits for every flavoring substance. The FDA field listing confirms the technical effect but does not explicitly define an approved status under a CFR section that includes numeric conditions of use, and therefore the regulatory approval field remains null with explanatory notes. Internationally, flavoring ingredients may be evaluated by expert committees such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA), which assigns flavor numbers and compiles safety evaluations as part of broader groups of structurally related compounds. The availability of a JECFA flavor number indicates that there has been expert review, but specific acceptable daily intake or numeric regulatory limits may not be established if data are insufficient or not specific to this compound. Similarly, regulatory agencies in the European Union and other jurisdictions assess flavoring agents within flavoring group evaluations, and lists of permitted flavorings may include this compound subject to general flavoring use principles. These evaluations focus on ensuring that substances are used at levels that do not pose safety concerns based on available toxicological and exposure data.
Taste And Functional Properties
3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN is characterized by sensory descriptors often associated with herbal, dill-like, and slightly green aromatic notes, which contribute to its utility in flavor formulation. Its functional properties include volatility that allows it to be perceived at low concentrations, solubility characteristics that influence how it integrates into aqueous or lipid phases of foods, and stability profiles that determine how it behaves under processing conditions like heat, pH variation, or storage. Flavor compounds used in food must balance sensory impact with stability; too volatile a compound may dissipate during cooking or storage, while too stable a compound may not release desired aromas during consumption. The molecular structure of this compound supports its use as a flavoring agent because the heterocyclic ring and substituents contribute to a balance of volatility and persistence appropriate for many applications. Functional behavior such as solubility in alcohols or minor water solubility ensures that formulators can blend it effectively into diverse product matrices. Understanding these sensory and physical properties helps product developers design flavor systems that perform predictably during manufacturing and deliver the intended sensory profile to consumers.
Acceptable Daily Intake Explained
An acceptable daily intake (ADI) is a health-based reference value that represents the amount of a substance that can be consumed daily over a lifetime without appreciable health risk. ADIs are typically expressed in milligrams of substance per kilogram of body weight per day and are derived by regulatory bodies based on toxicological studies. For many flavoring agents, including this compound, specific numeric ADI values may not be established if expert evaluations conclude that expected exposures from food use are below levels of concern or if data are insufficient for a formal numeric ADI calculation. In practice, flavoring agents are used at concentrations that lead to very low consumer exposures, often in the microgram range per person per day. This means that even without a specific ADI number, the regulatory framework emphasizes that these substances should be used at the lowest effective levels needed to achieve the desired sensory effect. Where ADIs exist for other compounds, they provide context for understanding how safety margins are established; however, in the absence of a defined ADI for this compound, the focus remains on cautious use and expert review rather than adherence to a numeric threshold.
Comparison With Similar Additives
Flavor compounds with functional roles similar to 3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN include other heterocyclic aromatic substances used to impart herbal, green, or dill-like sensory notes. For example, anethole, another aromatic heterocyclic flavor compound, provides sweet, licorice-like notes and is used in diverse applications from confections to savory products. Both compounds contribute distinctive aromatic profiles, but anethole tends to be used where sweeter, spicier notes are desired, whereas the hexahydrobenzofuran derivative contributes herbaceous dimensions. Similarly, flavoring agents such as carvone, which has a minty aroma, or estragole, with anise-like notes, illustrate how structurally related compounds contribute unique sensory effects while being evaluated within broader flavoring group assessments. Each compound’s sensory profile influences its selection for specific food applications, and regulatory assessments consider both the chemical structure and anticipated exposure when determining conditions of use. Comparisons among these compounds highlight the diversity of flavoring agents available to formulators and the importance of aligning sensory goals with safety assessments.
Common Food Applications Narrative
Flavoring agents like 3,6-DIMETHYL-2,3,3A,4,5,7A-HEXAHYDROBENZOFURAN are incorporated into a wide range of food products where nuanced aroma and taste enhancement contribute to consumer acceptance and product differentiation. In formulations such as savory snacks, condiments, relishes, and sauces, herbal and aromatic notes can complement other ingredients to produce balanced flavor profiles. Food scientists may blend this compound with other flavoring substances to mimic complex natural flavors or to add layers of sensory depth in products that benefit from a fresh, dill-like nuance. In bakery products, particularly those with savory characteristics or herb-infused profiles, small amounts of such flavoring agents can elevate the overall aroma without dominating the palate. Similarly, in seasonings and spice blends, it can be part of a curated mix that supports the primary seasoning components while providing subtle background complexity. Prepared or packaged meals, dressings, and dips may also use such flavorings to maintain consistent sensory attributes across production lots. Within the diverse landscape of food applications, this compound serves as a technical ingredient that helps achieve targeted sensory outcomes in final consumer products.
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Safety & Regulations
FDA
- Notes: Included in the FDA Substances Added to Food inventory without a specific CFR numeric allowance visible in the d source.
EFSA
- Notes: No EFSA specific numeric ADI could be confirmed from available authoritative evaluations.
JECFA
- Notes: Although assigned a JECFA flavor number, no explicit numeric ADI or year of establishment was found on the d JECFA evaluation source.
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