What It Is
DIMETHYLBENZYL CARBINYL CROTONATE is an organic chemical compound belonging to the class of esters used for its aromatic properties in food flavoring applications. Its systematic identifiers include the Chemical Abstracts Service (CAS) registry number 93762-34-6 and the PubChem Compound ID (CID) 16205756, which confirms its structural identity in chemical databases. The compound is typically referred to in scientific and regulatory contexts by its ester designation of 1,1-dimethyl-2-phenylethyl 2-butenoate or related ester synonyms. Esters, in general, are a broad class of organic compounds where an acid and alcohol functional groups react to form molecules with characteristic odors often exploited in flavor and fragrance design. In the context of flavor science, DIMETHYLBENZYL CARBINYL CROTONATE functions as a flavoring agent or adjuvant, meaning it is incorporated into food formulations primarily to enhance, modify, or provide specific sensory attributes such as fruitiness, floral notes, or complexity to food matrices. Flavoring agents like this are distinguished from nutritive food ingredients (such as carbohydrates, proteins, and fats) because their primary role is sensory rather than nutritional. In the flavor industry, compendia and flavor ingredient libraries document such compounds to support formulators in selecting components with predictable organoleptic profiles. Its listing in flavor ingredient registries such as the Flavor and Extract Manufacturers Association (FEMA) Flavor Library reflects its use and evaluation within the flavor community. While DIMETHYLBENZYL CARBINYL CROTONATE is part of a broad spectrum of compounds assessed for flavor use, it is not assigned a universal International Numbering System (INS) code in the same way as food additives with widespread regulatory authorization (e.g., common sweeteners or acids). Instead, scientific bodies and regulatory agencies may compile specific evaluations based on chemical identity and functional use. In some listings, compounds of this type are grouped by their functional class and structural characteristics to inform safety evaluations and usage guidelines. Its presence in food systems is generally at trace levels consistent with sensory impact rather than bulk ingredient usage.
How It Is Made
The synthesis of DIMETHYLBENZYL CARBINYL CROTONATE typically involves esterification reactions that couple an acid derivative (in this case, 2-butenoic acid or a substituted precursor) with an appropriate alcohol moiety such as 1,1-dimethyl-2-phenylethanol. Esterification processes are foundational in organic chemistry, often conducted under controlled conditions using catalysts such as acids or enzymes to facilitate the reaction between the carboxylic acid group and the alcohol's hydroxyl group to form the ester linkage and water as a byproduct. Variations on this process may include activated derivatives of the acid (e.g., acid chlorides or anhydrides) to drive the reaction toward the ester product with higher yield. In industrial practice, the manufacturing of flavor compounds is carried out under quality-controlled conditions to ensure purity, consistency, and conformity with analytical specifications. For food-grade esters, additional purification steps such as distillation, chromatographic separation, or recrystallization may be employed to remove residual reactants, catalysts, or byproducts that could affect sensory quality or safety. Analytical techniques including gas chromatography (GC) and mass spectrometry (MS) are standard tools used to verify the identity and purity of the synthesized compound before it is formulated into flavor blends. Good manufacturing practices (GMP) and food chemical specifications, when available, provide guidance on acceptable impurity profiles and analytical acceptance criteria to support safe usage. While specific industrial synthesis routes for DIMETHYLBENZYL CARBINYL CROTONATE are proprietary to manufacturers, the general approach reflects established esterification chemistry. In academic and industrial literature, synthetic pathways for related ester compounds often emphasize mild reaction conditions to preserve characteristic ester functionality and minimize decomposition or side reactions. Solvent choice, reaction temperature, and catalyst selection are key parameters that influence reaction efficiency and product quality. For food applications, the final product must undergo rigorous quality assurance testing to confirm that it meets defined specifications for sensory properties and chemical identity, ensuring consistency when incorporated into complex food and beverage formulations.
Why It Is Used In Food
In food science and flavor technology, the inclusion of compounds like DIMETHYLBENZYL CARBINYL CROTONATE is driven by their ability to contribute specific sensory characteristics to formulated products. Flavoring agents are selected based on their aromatic profiles and compatibility with the desired taste experience. DIMETHYLBENZYL CARBINYL CROTONATE is reported in flavor ingredient catalogs to possess herbal, fruity, or spicy aromatic notes, which can enhance the complexity and appeal of certain flavor profiles in consumer products. The rationale for using specialized flavoring agents lies in their potent sensory impact at very low concentrations. Unlike major food ingredients that contribute bulk nutritional content, flavoring agents are used at trace levels to fine-tune aroma and taste without altering the macro composition of the food. In complex flavor systems, a balanced combination of esters, aldehydes, ketones, and terpenes is often necessary to achieve the target sensory profile. Esters such as DIMETHYLBENZYL CARBINYL CROTONATE provide characteristic fruity or floral nuances that complement other flavor components. Their volatility and interaction with olfactory receptors contribute to the overall perception of flavor when food products are consumed. Flavor chemists consider multiple factors when selecting a flavoring agent for a food application, including the compound's odor threshold (the minimum concentration at which it is perceptible), its stability in the food matrix, and how it behaves under processing conditions such as heat or pH changes. While specific performance data for DIMETHYLBENZYL CARBINYL CROTONATE in each food system may not be publicly documented, the general use of esters in flavor design is well established. These compounds often exhibit favorable characteristics such as solubility in lipid phases, compatibility with other aroma compounds, and predictable sensory contributions, making them valuable tools in crafting desirable flavor experiences in a wide range of food and beverage categories.
Adi Example Calculation
To illustrate how an ADI-based calculation might work in a general regulatory context, consider a hypothetical compound with a defined ADI of X milligrams per kilogram of body weight per day. If an adult person weighs 70 kilograms, multiplying 70 by X gives the maximum amount of the compound that could be consumed daily without exceeding the ADI. For example, if the ADI were 1 mg per kg body weight per day, a 70 kg adult would have an ADI-based limit of 70 mg per day. This hypothetical calculation is illustrative only and does not apply specifically to DIMETHYLBENZYL CARBINYL CROTONATE because a numeric ADI was not established by JECFA. Instead, the committee concluded no safety concern at current intake levels, implying that actual exposures through food use are well below any threshold that would trigger safety concerns. Such calculations help contextualize the concept of an ADI for consumers and industry professionals. They show how body weight and exposure levels interact in regulatory safety assessments. It is important to note that actual intake of flavoring agents in food products is typically orders of magnitude lower than potential ADI-based thresholds, reflecting their use at trace levels solely for sensory impact rather than nutritional contribution.
Safety And Health Research
Safety evaluations for food flavoring agents focus on understanding potential hazards, exposure levels, and the margin of safety between typical dietary intake and levels associated with adverse effects in toxicological studies. For DIMETHYLBENZYL CARBINYL CROTONATE, the Joint FAO/WHO Expert Committee on Food Additives (JECFA) conducted an assessment as part of its evaluation of flavoring agents. JECFA concluded that, based on the available data and usage patterns, there is no safety concern at current levels of intake when used as a flavoring agent. This conclusion reflects a comprehensive review of toxicological information, chemical identity, metabolic considerations, and exposure estimates derived from typical flavor use patterns. It is important to note that such evaluations consider a broad range of data, including studies on general toxicity and metabolic fate, to ensure that the compound does not pose risks at the levels encountered in the diet. (Source: JECFA chemical evaluation) Toxicological research on flavoring compounds often includes assessments of acute toxicity, subchronic exposure, and, when data are available, genotoxicity and reproductive endpoints. These studies provide insight into how the compound is absorbed, metabolized, and eliminated, as well as potential effects on organ systems at high doses. Regulatory bodies weigh these findings against estimated human exposure to determine whether a safety concern exists. In the case of DIMETHYLBENZYL CARBINYL CROTONATE, no specific numeric acceptable daily intake (ADI) was assigned by JECFA, and the committee indicated that exposure at current use levels is not a concern. The absence of an ADI does not imply unrestricted use but reflects the committee's judgment that dietary exposure is considerably below levels that would raise safety concerns based on available toxicological data. Consumer research on flavoring agents typically does not focus on individual compounds at trace levels but rather on overall dietary patterns and exposure to flavoring substances in aggregate. Because flavoring agents are used at very low concentrations in food products, their contribution to overall chemical exposure is small compared to major food components. Nonetheless, safety evaluations are conducted systematically to identify any potential biological effects and ensure that cumulative exposure remains within safe limits for the population as a whole. Ongoing monitoring and research help inform future evaluations and ensure that regulatory decisions are based on current scientific understanding.
Regulatory Status Worldwide
The regulatory status of DIMETHYLBENZYL CARBINYL CROTONATE varies globally, largely reflecting differing frameworks for evaluating flavoring agents. Internationally, the Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated this compound in the context of its use as a flavoring agent. According to the JECFA database entry, DIMETHYLBENZYL CARBINYL CROTONATE (identified by JECFA number 2025) was evaluated, and the committee concluded that there is no safety concern at current levels of intake when the compound is used as a flavoring agent, reflecting an assessment based on available toxicological and exposure information. This evaluation does not establish a numeric acceptable daily intake but communicates that the existing dietary exposure at typical use levels is not considered to pose a safety risk under the conditions evaluated. The specification for identity and purity of the compound is included in relevant JECFA documents that support international harmonization of food additive standards. Scientific monographs and technical reports from JECFA outline the basis for this conclusion and provide context for global regulatory discussions. (Source: JECFA Chemical database entry) In the United States, the Food and Drug Administration (FDA) maintains inventories such as the "Substances Added to Food" (formerly EAFUS) to document substances that have been evaluated or are in use. Listings in such inventories may include flavoring agents that have been subject to evaluations by trade associations such as the Flavor and Extract Manufacturers Association (FEMA) Expert Panel or by international bodies like JECFA. Inclusion in the database indicates recognition of the substance as a food ingredient category but does not constitute formal FDA approval or a direct authorization under specific Code of Federal Regulations sections. Users and manufacturers often consult these inventories to understand how substances are categorized and referenced in regulatory contexts. (Source: FDA Substances Added to Food inventory) Within the European Union, flavoring agents are regulated under comprehensive food additive and flavoring regulations that require submission of safety data and specifications. While specific entries for DIMETHYLBENZYL CARBINYL CROTONATE under the EU flavoring list (e.g., Flavouring Regulation Annexes) are not readily found in public regulatory databases, flavoring substances are generally subject to evaluation and use conditions based on safety assessments by the European Food Safety Authority (EFSA). In such jurisdictions, flavoring agents may be permitted with usage restrictions and labeling requirements to ensure consumer safety and transparency. Across other regions, national food safety authorities may adopt similar frameworks that consider international evaluations, scientific evidence, and local dietary exposure patterns when determining the regulatory status of flavoring ingredients.
Taste And Functional Properties
The sensory properties of DIMETHYLBENZYL CARBINYL CROTONATE are defined by its ester functional group and aromatic substituents, which confer characteristic odor and taste influences when used in flavor formulations. Esters are commonly associated with fruity, floral, or sweet aromatic notes, and this compound in particular is described in flavor ingredient resources as exhibiting herbal and fruity nuances. Such sensory attributes make it useful for enriching complex flavor profiles where a delicate interplay of aroma notes is desired. From a functional standpoint, flavoring agents like this compound are evaluated not only for their sensory impact but also for their physical and chemical behavior in food systems. Solubility is a crucial factor; many esters demonstrate good solubility in organic solvents and lipid phases, facilitating their integration into emulsions, fat-based products, and beverages. Their volatility also influences how the compound contributes to aroma release during consumption and processing. Compounds with moderate volatility can provide sustained odor release, which enhances the sensory experience over time. Stability under food processing conditions is another important consideration. Heat, pH shifts, and storage conditions can alter the chemical integrity of flavor compounds. While detailed stability data for DIMETHYLBENZYL CARBINYL CROTONATE under all processing conditions may not be publicly available, esters generally display moderate stability, with susceptibility to hydrolysis under extreme pH or prolonged high-temperature exposure. Food scientists account for these functional characteristics when formulating products, selecting complementary ingredients and processing parameters that maintain flavor integrity. Sensory panels and analytical techniques such as gas chromatography-olfactometry are used to assess how a flavoring agent performs in complex matrices, ensuring that the desired organoleptic properties are delivered to consumers.
Acceptable Daily Intake Explained
The concept of an acceptable daily intake (ADI) is a regulatory tool used by food safety authorities to express a conservative estimate of the amount of a substance that can be ingested daily over a lifetime without appreciable health risk. ADIs are typically established when sufficient toxicological data exist to identify a no-observed-adverse-effect level (NOAEL) in experimental studies, which is then divided by safety factors to account for uncertainties in extrapolating from animal models to humans and variability within human populations. In the case of DIMETHYLBENZYL CARBINYL CROTONATE, the Joint FAO/WHO Expert Committee on Food Additives (JECFA) did not assign a specific numeric ADI. Instead, the committee concluded that there is no safety concern at current levels of intake when used as a flavoring agent. This type of conclusion is reached when expert review determines that typical dietary exposure is sufficiently low and that the available toxicological data do not suggest adverse effects at those exposure levels. A non-numeric ADI or a statement of no concern differs from a defined numeric ADI but still serves to provide assurance that the compound's use at typical levels in food products is considered safe based on current evidence. For consumers and industry, it is important to understand that an ADI is not a recommended intake level but rather a safety threshold. Actual exposure to a flavoring substance in foods is usually far below the ADI or below levels that would cause concern, given the low concentrations at which flavoring agents are used. Regulatory agencies and expert committees periodically review ADIs and safety evaluations as new scientific data become available, ensuring that risk assessments remain up to date with the latest evidence.
Comparison With Similar Additives
DIMETHYLBENZYL CARBINYL CROTONATE can be understood in relation to other ester-type flavoring agents that share similar sensory roles in food systems. Esters such as ethyl butyrate, isoamyl acetate, and methyl anthranilate are well known for imparting fruity and floral nuances and are widely used in beverages, confectionery, and dairy products. Like DIMETHYLBENZYL CARBINYL CROTONATE, these compounds are used at low concentrations to achieve specific sensory effects without contributing significant bulk to food formulations. Ethyl butyrate, for example, is recognized for its strong fruity aroma reminiscent of pineapple and is commonly incorporated into fruit-flavored beverages and candies. Its volatility and solubility characteristics make it suitable for aqueous and lipid food systems. Isoamyl acetate, with its characteristic banana-like aroma, is another ester widely used in flavor design. These compounds illustrate how structural variations among esters influence sensory perception and application niches in product formulation. Compared to these more commonly documented esters, DIMETHYLBENZYL CARBINYL CROTONATE may offer more niche or subtle aromatic contributions, often leveraged by flavorists seeking to craft unique or complex sensory profiles. While the sensory properties vary among ester-type flavoring agents, their regulatory evaluations share common principles. Safety assessments by expert committees consider factors such as chemical identity, metabolism, toxicological data, and dietary exposure. Regulatory bodies may assign numeric ADIs for some well-studied compounds when sufficient data exist, whereas others may be concluded to pose no safety concern at current use levels without numeric ADIs. This reflects the diversity of evidence and usage patterns across different flavoring agents. Understanding these similarities and differences helps formulators and regulators make informed decisions about the selection and safe use of flavoring compounds in a wide range of food products.
Common Food Applications Narrative
Flavoring agents are integral components in a wide array of food and beverage products where sensory appeal is a primary driver of consumer preference. In products such as soft drinks, baked goods, confectionery, dairy desserts, and fruit-flavored snacks, esters contribute nuanced aromatic qualities that enhance the overall flavor profile. For example, in fruit-flavored beverages, esters with fruity and floral characteristics are often blended to mimic natural fruit aromas, creating sensory experiences that align with consumer expectations. Similarly, in baked goods and confectionery, subtle flavor enhancers are used to round out and balance sweetness, contributing depth and complexity to the final product. In dairy and dessert applications, flavoring agents help compensate for the muted natural aromas that can occur during processing or storage. Esters may be used to reinforce desirable sensory attributes that are lost or diminished during pasteurization or freezing. In snack foods and seasonings, aromatic esters can complement savory and sweet elements, contributing to a harmonious sensory impact. The selection of specific flavoring agents is tailored to each product category, with consideration given to how the compound interacts with other ingredients in the formulation. While DIMETHYLBENZYL CARBINYL CROTONATE itself may be used at trace levels, its inclusion in flavor blends highlights the sophisticated approach taken in modern food formulation to meet diverse consumer preferences. Flavorists and food technologists work collaboratively to design flavor systems that deliver consistent sensory experiences across production batches and shelf life. These efforts support product differentiation in competitive markets, where subtle sensory distinctions can influence consumer choice. The careful integration of flavoring agents like esters plays a crucial role in achieving these objectives while maintaining regulatory compliance and sensory quality.
Safety & Regulations
FDA
- Notes: No specific FDA regulation section could be confirmed; presence in inventory does not imply direct approval.
EFSA
- Notes: EFSA evaluation data specific to this compound was not found in public sources.
JECFA
- Notes: JECFA concluded no safety concern at current intake levels without assigning a numeric ADI.
- Adi Display: No safety concern at current intake levels when used as flavoring agent
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