CIS-CARVONE OXIDE
CIS-CARVONE OXIDE is a synthetic flavouring agent permitted in foods for its minty aroma and taste properties. It is listed under FDA's synthetic flavouring substances regulation and evaluated by JECFA for use at levels that do not raise safety concerns.
What It Is
CIS-CARVONE OXIDE is a chemically defined flavouring agent with the Chemical Abstracts Service (CAS) number 18383-49-8, used as a flavouring agent or adjuvant in foods. It belongs to a class of cyclic oxygenated terpenoid compounds derived from carvone and related structures. In regulatory inventories such as the U.S. Food and Drug Administration (FDA) food additive list, this compound is identified alongside other synthetic flavouring substances under relevant sections of the Code of Federal Regulations. Its technical function in food is to contribute specific sensory attributes, particularly a minty or cool aromatic profile that can enhance or complement other flavour notes in a formulation. This compound also has a FEMA (Flavor and Extract Manufacturers Association) GRAS designation as a flavouring substance, indicating expert evaluation of its safety when used in accordance with good manufacturing practice. As a flavouring agent, CIS-CARVONE OXIDE does not serve nutritional or preservative roles in food products; rather, it is added specifically to impact sensory perception. The compound itself is a small organic molecule with a bicyclic epoxide structure, conferring unique olfactory characteristics that are recognized in flavour science. It may occur in both natural and synthetic contexts, although in commercial food applications the synthetically produced form is typically used due to consistency and purity considerations. When considering the identity of CIS-CARVONE OXIDE, it is useful to recognize that it is one of many epoxide derivatives of terpenes evaluated by global food safety authorities. The structural features that define this compound influence its behaviour both in flavour formulations and during metabolic processing. Regulatory evaluations, including those by the Joint FAO/WHO Expert Committee on Food Additives (JECFA), have considered these characteristics as part of broader safety assessments. Its inclusion in regulatory inventory lists confirms that it is recognized as a defined flavouring substance rather than an unspecified extract or complex mixture.
How It Is Made
The manufacturing of CIS-CARVONE OXIDE generally involves chemical transformation of precursor terpenoid compounds, most commonly derivatives of carvone. In industrial contexts, epoxidation reactions are used to introduce an oxygen bridge into the molecular framework, yielding the bicyclic epoxide structure characteristic of this compound. One common method described in chemical literature involves the reaction of carvone or related substrates with an oxidizing agent such as hydrogen peroxide in the presence of an acid catalyst. During this process, conditions such as temperature, solvent, and catalyst type are controlled to achieve an efficient conversion while minimizing side reactions and impurities. After synthesis, the crude product undergoes purification steps to meet specifications appropriate for flavour use. This purification typically includes techniques such as distillation and chromatographic separation to isolate the desired epoxide isomer and to remove unreacted starting materials, catalyst residues, and other byproducts. The goal of these purification steps is to produce a material of high chemical purity that is consistent with regulatory expectations for flavouring substances. Specifications often include defined limits on assay content, stereoisomeric composition, and the presence of related impurities. Because flavouring agents are used in very low concentrations in food formulations, the production process aims to deliver material that performs reliably in sensory applications. Manufacturers engaged in flavour ingredient production adhere to good manufacturing practices, ensuring traceability of input materials and documentation of process controls. This aligns with regulatory expectations in major markets, including the United States and international guidelines referenced by organizations such as the FAO and WHO. As a synthetic flavouring agent, CIS-CARVONE OXIDE does not require agricultural origin raw materials, but rather is produced under controlled chemical manufacturing protocols designed for consistency and food-grade quality.
Why It Is Used In Food
CIS-CARVONE OXIDE is used in food primarily for its sensory contribution. Flavouring agents such as this compound are incorporated into food and beverage products to impart or enhance specific taste and aroma profiles that appeal to consumers. Its characteristic minty or cool aromatic notes make it particularly suitable for inclusion in products where a refreshing or herbal nuance is desired. For example, formulations that aim to evoke mint or related sensory experiences may include small amounts of this compound as part of a broader flavour blend. The use of defined flavouring agents like CIS-CARVONE OXIDE allows food scientists to tailor sensory profiles with precision. Chemical flavouring substances are selected based on their ability to deliver consistent sensory effects at controlled use levels. Because flavour perception is highly sensitive to concentration and matrix interactions, compounds with well-understood sensory thresholds and profiles are valuable tools in product development. In addition to contributing flavour intensity, such ingredients can interact synergistically with other constituents to round out a product's overall flavour balance. Another rationale for using synthetic flavouring agents is the need for supply stability and quality control. Natural sources of fragrant compounds can vary in composition due to agricultural, seasonal, and geographic factors, whereas synthetically produced flavouring agents offer a consistent chemical identity. This consistency supports reproducibility in food product formulations across production lots and manufacturing sites. Regulatory mechanisms that recognize specific compounds for flavour use, such as inclusion in permitted additive lists or flavour inventories, provide a framework within which manufacturers can work to ensure that their products meet safety expectations while achieving desired sensory attributes.
Adi Example Calculation
To illustrate how ADI concepts are applied in a regulatory context, consider a hypothetical flavouring agent with an established ADI of X milligrams per kilogram of body weight per day. For an adult weighing 70 kilograms, the total daily intake at the ADI would be the product of body weight and the ADI value (70 kg multiplied by X mg/kg), yielding an example total daily intake that represents a conservative safety threshold. In practice, typical exposure from food use of flavouring agents such as CIS-CARVONE OXIDE is far lower than these conservative thresholds because usage levels in formulations are very small, and food consumption patterns distribute intake across many ingredients. In the case of flavouring agents that do not have an established numeric ADI due to lack of safety concerns at anticipated intake levels, the calculation described above serves as a conceptual tool rather than a regulatory requirement. It illustrates the principle that regulators and scientists use when they derive ADIs and apply safety factors. For flavouring agents, exposure assessments often rely on estimated use levels in various food categories combined with consumption data to determine whether typical intake is likely to exceed thresholds of concern. If exposure estimates remain below these thresholds, regulatory bodies conclude that the substance is safe for its intended use without the need for a specific ADI value. This illustrative approach helps convey why many flavouring agents, including CIS-CARVONE OXIDE, are considered safe at levels commonly encountered in food. The focus is on ensuring that intake remains below levels where adverse effects might occur, using conservative assumptions and comprehensive data where available. Because flavouring agents are used in small quantities and exposure is distributed across diverse dietary sources, this framework provides a robust basis for consumer safety assessments.
Safety And Health Research
Safety and health research on flavouring agents such as CIS-CARVONE OXIDE focuses on understanding potential toxicological effects, metabolic fate, and exposure scenarios that could influence human health. Regulatory expert committees and scientific panels typically evaluate available data on genotoxicity, acute and subchronic toxicity, reproductive and developmental effects, and other relevant endpoints as part of their risk assessment process. For many flavouring substances, including epoxide derivatives, available toxicological information indicates that these compounds are metabolized and eliminated without causing adverse effects at typical exposure levels encountered through food use. Studies of flavouring substances generally involve a combination of in vitro assays and in vivo studies designed to identify potential hazards. Genotoxicity tests examine whether a compound can damage genetic material in cells, while subchronic toxicity studies assess effects of repeated exposure over weeks to months. For CIS-CARVONE OXIDE, regulatory evaluations by bodies such as JECFA consider the collective evidence for its structural class, using established procedures that integrate chemical structure, metabolic pathways, and available toxicological data to determine whether safety concerns arise at anticipated intake levels. An important aspect of safety assessment is the concept of threshold of toxicological concern (TTC), which provides a conservative exposure level below which a compound is not expected to pose a significant risk in the absence of specific toxicity data. For many flavouring agents with low usage levels, intake estimates fall below TTC values, contributing to conclusions that no safety concern exists at current use patterns. As part of ongoing safety research, scientists continue to monitor emerging data, refine exposure assessment methodologies, and update evaluations when new evidence becomes available. The goal of this body of research is to ensure that flavouring agents such as CIS-CARVONE OXIDE maintain an appropriate safety profile when used in accordance with regulatory and industry standards.
Regulatory Status Worldwide
The regulatory status of CIS-CARVONE OXIDE reflects evaluations by authoritative bodies that oversee the safe use of flavouring agents in food. In the United States, the Food and Drug Administration (FDA) lists this compound under the category of synthetic flavouring substances and adjuvants permitted for direct addition to food, specifically referenced in Title 21 of the Code of Federal Regulations. Section 172.515 includes a range of synthetic flavouring agents that may be safely used in food in accordance with good manufacturing practice, confirming its recognized role as a flavouring ingredient under U.S. regulations. This listing does not imply a numerical allowable daily intake, but it does reflect regulatory acknowledgment and conditions of safe use as part of a broader flavouring substance inventory. The FDA regulation emphasizes that such compounds are used at the minimum quantity required to achieve their intended sensory effect and consistent with good manufacturing practices. At the international level, the Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated flavouring substances including CIS-CARVONE OXIDE or its structural analogues as part of broader flavouring group assessments. JECFA evaluations consider available toxicological data, metabolic pathways, and exposure estimates to determine whether a compound raises safety concerns at current levels of intake. The Committee’s conclusions for this class of flavouring agents indicate that there is no safety concern at current estimated levels of intake when used as flavouring agents, supporting their continued use in food formulations. In the European Union, flavouring substances are subject to evaluation under Regulation (EC) No 1334/2008, which requires that chemically defined flavouring agents be assessed for safety before inclusion in the Union list of permitted flavourings. EFSA conducts Flavouring Group Evaluations to systematically assess groups of related substances. While specific EFSA opinions addressing CIS-CARVONE OXIDE may not always be individually published, the general framework applies rigorous hazard identification, characterisation, exposure assessment, and risk characterisation to determine whether a flavouring agent can be considered safe for its intended use. National and regional frameworks in other jurisdictions similarly evaluate flavouring agents based on safety data, exposure estimates, and technical function, ensuring that their use in food remains aligned with consumer protection objectives.
Taste And Functional Properties
CIS-CARVONE OXIDE is known for its distinctive sensory properties, largely described in flavour science literature as having a minty, cool, or refreshing aromatic profile. This sensory character arises from its bicyclic epoxide structure, which interacts with olfactory receptors to evoke specific notes reminiscent of mint and related botanical aromas. In food matrices, even very low concentrations of flavouring agents can significantly influence taste and aroma perception because of the human sensory system's high sensitivity to volatile compounds. Functionally, CIS-CARVONE OXIDE contributes to the overall flavour profile without imparting nutritional value or acting as a preservative. Its behaviour in food systems depends on factors such as solubility, volatility, and stability under processing conditions. Flavouring agents of this type are typically soluble in ethanol and other organic solvents and are used in flavour blends that are subsequently dispersed in aqueous or lipid-based food systems. Because flavour compounds must withstand a range of processing and storage conditions, understanding their stability is important in formulation design. CIS-CARVONE OXIDE is used in contexts where its sensory properties remain intact during manufacturing and shelf life. The compound's functional properties also include its interaction with other flavour components. In complex flavour systems, individual molecules can modulate the perception of sweetness, freshness, or herbal nuances when combined with other ingredients. Sensory scientists often conduct descriptive analysis and consumer testing to determine how a given flavouring agent performs in a specific application. For CIS-CARVONE OXIDE, its minty profile may be balanced with other flavour notes to achieve harmonious results in beverages, confectionery, oral care products, and other applications where refreshing sensory attributes are desirable. Because flavour perception is subjective and influenced by cultural and individual differences, formulation efforts aim to optimize the blend for target consumer preferences.
Acceptable Daily Intake Explained
The concept of Acceptable Daily Intake (ADI) is central to understanding how food safety authorities establish safe exposure levels for additives, including flavouring agents. An ADI represents an estimate of the amount of a substance in food or drinking water that can be ingested daily over a lifetime without appreciable risk to health. Regulatory bodies derive ADIs by reviewing toxicological data, identifying points of departure such as no observed adverse effect levels (NOAELs), and applying safety factors to account for uncertainties in the data and variability among human populations. For many flavouring agents, including CIS-CARVONE OXIDE, explicit numerical ADI values may not be established if the available data and typical exposure levels indicate that there is no safety concern at current use levels. In such cases, expert committees conclude that the compound does not raise safety concerns under conditions of intended use, which effectively means that typical dietary exposure is expected to be well below any level that could pose health risks. This approach reflects a conservative interpretation of toxicological evidence and exposure estimates, ensuring that consumer safety is maintained even in the absence of a specific numeric ADI. It is important to emphasize that ADIs are not recommended intake targets, but rather safety benchmarks. A substance with no established numerical ADI due to lack of concern at anticipated exposure levels is still subject to regulatory oversight and good manufacturing practices that limit its use to amounts necessary to achieve the desired sensory effect. Consumers do not need to calculate their own intake relative to an ADI, but understanding the concept helps contextualize how safety assessments are conducted and how regulatory decisions are made to protect public health while allowing flavour innovation.
Comparison With Similar Additives
When comparing CIS-CARVONE OXIDE with other flavouring agents, a useful perspective is to look at compounds with similar sensory roles or structural features. For example, menthol is another terpene-derived flavouring agent widely used for its minty aroma and cooling sensation in foods and beverages. Like CIS-CARVONE OXIDE, menthol contributes a recognizable sensory note and is included in regulatory inventories with defined conditions of safe use. Menthol’s sensory intensity and consumer familiarity make it a common choice in confectionery, oral care, and beverage applications. While the two compounds share a cool, minty sensory profile, differences in chemical structure result in distinct olfactory nuances that flavourists exploit to achieve specific sensory outcomes. Another structurally related additive is carvone itself, the precursor terpenoid from which epoxide derivatives such as CIS-CARVONE OXIDE are derived. Carvone has a characteristic spearmint or caraway flavour, depending on its stereochemistry, and is used to impart similar sensory effects in food products. CIS-CARVONE OXIDE’s epoxide functionality alters its interaction with sensory receptors compared to carvone, offering a slightly different aromatic quality that may be preferred in certain flavour applications. Both compounds undergo safety evaluations by expert bodies, but their metabolic pathways and sensory roles differ, illustrating the diversity of terpenoid-derived flavouring agents. Comparing CIS-CARVONE OXIDE with other epoxide-containing flavouring agents highlights how structural features influence both regulatory assessment and sensory behaviour. Epoxides in flavour science can range from linear to bicyclic structures, each with unique olfactory contributions. Regulatory evaluations often group such compounds for safety assessment based on structural similarities and expected metabolic pathways. Across these comparisons, the unifying theme is the use of defined flavouring agents to achieve targeted sensory effects, with regulatory frameworks ensuring that each compound’s use remains consistent with safety expectations and technical function.
Common Food Applications Narrative
CIS-CARVONE OXIDE finds application in a diverse array of food products where its sensory profile contributes to the overall eating experience. Food flavour development relies on defined chemical flavouring agents to achieve specific taste and aroma characteristics that consumers recognize and enjoy. In products that aim to provide a cooling, minty, or herbal nuance, flavour chemists may incorporate CIS-CARVONE OXIDE as one component of a carefully designed flavour blend that balances multiple sensory dimensions. One broad category of foods where this compound might be encountered is confectionery. Mint-flavored candies, chewing gums, and breath fresheners often feature a combination of flavouring agents that together produce a refreshing experience. In these applications, CIS-CARVONE OXIDE can provide a clean, crisp note that enhances perception of mint or related botanical flavours. Likewise, beverages formulated with herbal or mint-inspired flavour profiles, such as certain iced teas or carbonated soft drinks, may include this compound to support the intended sensory effect. Beyond confectionery and beverages, CIS-CARVONE OXIDE can be part of flavour blends used in dairy-based products, such as frozen novelties, where a refreshing finish is desired. It may also appear in seasoning blends for snacks or condiments where notes of cool herbs complement underlying savory or sweet elements. In oral care categories including mouthwashes and toothpaste, flavour agents with minty characteristics are integral to consumer expectations, although these categories are not food per se but fall within sensory-related applications. Across these common food applications, the key theme is the use of CIS-CARVONE OXIDE to contribute a recognizable sensory dimension that resonates with consumer preferences for freshness and aromatic complexity.
Safety & Regulations
FDA
- Approved: True
- Regulation: 21 CFR 172.515
EFSA
- Notes: Specific EFSA assessment details for this substance are not identified in the available sources.
JECFA
- Notes: JECFA concluded no safety concern at current intake levels without establishing a numeric ADI.
- Adi Display: No safety concern at current levels of intake
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