1-DECANOL

CAS: 112-30-1 FLAVORING AGENT OR ADJUVANT

1-DECANOL is a straight-chain fatty alcohol with CAS 112-30-1 used as a flavoring agent or adjuvant in food formulations and evaluated by regulatory and expert panels for safety under intended conditions of use.

What It Is

1-DECANOL is an organic compound classified as a long-chain fatty alcohol with ten carbon atoms and the molecular formula C10H22O. It is known by the CAS number 112-30-1 and is part of the family of primary alcohols derived from saturated fatty acid precursors. Chemically, 1-DECANOL consists of a hydroxy group (-OH) attached to the terminal carbon of a linear ten-carbon aliphatic chain, making it a fatty alcohol that exhibits properties typical of long-chain alcohols, including low water solubility and a waxy or fatty sensory profile. This compound appears as a colorless to faintly yellow, viscous liquid at ambient conditions and is characterized by a mild odor and its solubility behavior in non-polar solvents. The broader category of fatty alcohols, which includes 1-DECANOL, is widely utilized in various industrial and consumer applications due to its amphipathic nature, providing both hydrophobic and slightly polar characteristics. In the context of food technology and formulation, 1-DECANOL functions as a flavoring agent or adjuvant, meaning it contributes aromatic qualities or modifies sensory perception in food products when used at appropriate concentrations. Its classification as a flavoring agent indicates that its primary purpose is to enhance or impart desirable organoleptic characteristics such as aroma or flavor complexity, particularly in fat-compatible profiles. The designation of 1-DECANOL under regulatory frameworks reflects its specialized use and the safety evaluations it has undergone for such roles. Across international regulatory databases and expert panel assessments, 1-DECANOL is recognized within structured inventories of food-related substances, aiding formulators and regulatory professionals in ingredient selection and compliance activities.

How It Is Made

The production of 1-DECANOL typically involves chemical processes that convert precursor hydrocarbons or fatty acid derivatives into the target fatty alcohol. One common industrial pathway begins with the high-pressure catalytic hydrogenation of naturally derived fatty acids or esters such as capric acid, which is a ten-carbon saturated fatty acid. Under controlled conditions, hydrogenation reduces the carboxylic acid moiety to the corresponding alcohol, resulting in the formation of 1-DECANOL. Another synthetic route leverages oligomerization of ethylene using organometallic catalysts, a variant of the so-called Ziegler process, to build linear intermediate alkyl chains that are subsequently oxidized and reduced to yield the terminal alcohol. The choice of production method is influenced by feedstock availability, cost considerations, and the desired purity specifications for the final product. In commercial practice, the quality of 1-DECANOL is assured through purification steps such as fractional distillation, which separates the desired compound from reaction byproducts and unreacted materials. Purity is critical for flavor applications because impurities can introduce off-odors or undesirable taste properties. Additionally, manufacturers follow established chemical quality standards, including technical grades suitable for industrial use and higher, more refined grades for food-related applications. Although detailed proprietary processes may vary among producers, the fundamental chemistry relies on reducing long-chain carbon precursors to the corresponding alcohol functional group. This general approach is consistent with how many fatty alcohols are produced globally, balancing efficiency and the capacity to scale production volumes. Beyond industrial synthesis, 1-DECANOL can also be sourced from natural fats and oils in small quantities. For example, trace amounts of decanol compounds occur in certain essential oils, such as orange or ambrette seed oil, contributing to their distinctive aromatic profiles. However, for most commercial uses, especially in flavoring and formulation contexts, the synthetic pathways described above provide the bulk of supply due to their controllability and scalability.

Why It Is Used In Food

1-DECANOL is used in food formulations primarily for its role as a flavoring agent or adjuvant, where it contributes to the sensory attributes of complex flavor profiles. Flavor chemists often select long-chain alcohols like 1-DECANOL to enhance or modify fat-associated aroma characteristics because these molecules interact preferentially with lipid phases, which influence the perception of richness and depth in foods. The compound’s chemical properties—specifically its balanced hydrophobic and slightly polar nature—allow it to integrate into emulsion systems and other heterogeneous food matrices. This versatility makes it useful in applications where aroma longevity and consistency are critical, such as in confectionery, beverages with oil-based flavor components, and dairy analogs. In practice, 1-DECANOL is added at low concentrations to avoid overwhelming the sensory profile or introducing off-notes. Its use is often part of a broader formulation strategy where multiple flavor components work synergistically to achieve a desired organoleptic effect. For instance, in citrus-like or fruit-associated flavor blends, 1-DECANOL may adjust the fatty or waxy top notes, helping to round out the overall taste experience. The term “adjuvant” in its functional description underscores this role in assisting or modulating flavor performance rather than acting as a dominant flavor on its own. Moreover, 1-DECANOL’s inclusion in food is guided by regulatory inventories and expert panel evaluations that consider both its intended use levels and safety profile. These evaluations help ensure that flavoring agents are used within a context of consumer safety and regulatory compliance. It is important to note that the technological function of 1-DECANOL in food systems is distinct from primary nutritional components such as proteins, fats, and carbohydrates; instead, it serves a specialized sensory and processing role. By enabling nuanced flavor modulation, ingredients like 1-DECANOL allow food manufacturers to innovate in product development while maintaining consistency and consumer appeal.

Adi Example Calculation

To illustrate how acceptable daily intake concepts are applied, consider a hypothetical scenario in which a regulatory body establishes an ADI for a flavoring agent of 5 mg per kilogram of body weight per day. In this example, an adult weighing 70 kilograms would have a theoretical ADI of 350 mg per day (70 kg multiplied by 5 mg/kg). It is important to emphasize that this calculation is purely illustrative and not a statement of an established ADI for 1-DECANOL, as specific numeric values were not extracted from the d regulatory summaries. The calculated figure simply demonstrates how an ADI is scaled based on body weight. In real-world regulatory practice, actual intake levels from food products are estimated through dietary exposure assessments that account for the frequency and quantity of consumption across food categories where the compound is used. These exposure estimates are then compared with the ADI threshold to determine whether typical consumption patterns approach or exceed safety margins. For flavoring agents like 1-DECANOL, estimated exposures are generally far below any toxicological concern levels, reinforcing the conclusion from expert evaluations that normal use does not pose meaningful risk. Such illustrative calculations help contextualize the relationship between regulatory benchmarks and actual consumer exposure, highlighting the role of uncertainty factors and safety margins that underlie ADI determinations. They illustrate why regulators emphasize extensive safety evaluations prior to approving or recognizing flavoring agents within food additive frameworks.

Safety And Health Research

Safety evaluations for 1-DECANOL focus on its toxicological profile, exposure potential, and relevance to consumer health when used as intended in food flavor applications. Expert bodies such as JECFA conduct comprehensive reviews of available data, including acute toxicity, subchronic and chronic toxicity, and other relevant endpoints. For 1-DECANOL, JECFA’s evaluation, as summarized in official reports, concluded that there was no safety concern at current levels of intake when used as a flavoring agent, indicating that typical dietary exposures do not pose appreciable risk. These assessments are grounded in established risk assessment methodologies that consider the margin between estimated human exposure and doses associated with no observed adverse effects in experimental systems. It is important to clarify that safety evaluations do not imply that a substance is entirely free of biological activity; rather, they place such activity in the context of expected exposure through normal food use. Toxicological studies often include a range of tests designed to identify potential hazards such as genotoxicity, reproductive effects, and organ-specific toxicity. Data from animal studies, in vitro assays, and structure-activity analyses contribute to a weight-of-evidence approach. In the case of long-chain fatty alcohols like 1-DECANOL, many safety profiles align with generally low acute toxicity and minimal systemic effects at low exposure levels. Regulatory and expert reviews also consider the compound’s metabolism and elimination, recognizing that fatty alcohols are metabolized via pathways similar to dietary lipids and are inherently part of broader lipid biochemistry. While individual metabolic nuances vary, the collective evidence supports the conclusion that 1-DECANOL’s use as a flavoring agent at typical use levels does not raise food safety concerns. Nonetheless, safety assessments are periodically updated in response to new data, ensuring that regulatory positions remain aligned with the current scientific understanding.

Regulatory Status Worldwide

The regulatory status of 1-DECANOL as a flavoring agent or adjuvant is defined through inventories and expert panel evaluations that consider both safety and intended use conditions. In the United States, flavoring substances are cataloged in inventories such as the Substances Added to Food list maintained by the Food and Drug Administration. Expert panels such as those convened by the Flavor and Extract Manufacturers Association (FEMA) evaluate scientific data to determine whether substances meet criteria consistent with generally recognized as safe (GRAS) status under conditions of intended use. According to FEMA, 1-DECANOL is assigned FEMA number 2365 and has been included in GRAS inventories with corresponding references to CFR provisions such as 21CFR172.515, indicating its use as a flavoring agent within specified regulatory frameworks. Internationally, bodies such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA) evaluate flavoring agents through systematic review processes, assigning unique identifiers (e.g., JECFA No. 103 for 1-DECANOL) and assessing toxicological and exposure data. JECFA evaluations provide a scientific basis for understanding potential safety concerns at levels of intake consistent with dietary exposure. While JECFA does not establish binding regulations, its assessments inform national and regional authorities in their decisions regarding permissible uses and conditions. In Europe, the European Food Safety Authority (EFSA) similarly reviews flavoring agents, although specific E-number designations and numerical acceptable daily intake (ADI) values are established only when sufficient data and formal evaluations support such parameters. Regulatory frameworks in many countries reflect a combination of hazard identification, exposure assessment, and expert judgment, ensuring that substances like 1-DECANOL are used within appropriate technological contexts. Where specific numeric regulatory thresholds or ADIs are not publicly detailed, expert panel determinations and inventory listings serve as the primary guidance for industry compliance and formulation practices.

Taste And Functional Properties

From a sensory perspective, 1-DECANOL exhibits characteristics typical of long-chain fatty alcohols, contributing to a mild, fatty, or waxy aroma that can be perceived in trace amounts within complex flavor profiles. Because of its relatively low volatility compared to short-chain alcohols, it does not impart sharp, pungent notes but rather supports and stabilizes more volatile aroma compounds. This makes it particularly valuable in formulations where a subdued yet persistent aroma is desired, such as in creamy or oil-rich flavor applications. Its sensory contribution is often described as complementary, enhancing the perception of depth and fullness without detracting from primary flavor targets such as fruit, floral, or sweet notes. Functionally, 1-DECANOL’s physical properties influence how it behaves in food matrices. It is sparingly soluble in water but dissolves readily in lipid phases and organic solvents, which aligns with its use in flavors that are oil-based or emulsified. This solubility profile means that it contributes more effectively to the aroma of fat-containing products or beverages with dispersed oil droplets. Its stability across a range of temperatures and pH conditions common in food processing further supports its utility in diverse applications. For instance, in processes involving heat, such as baking or pasteurization, the compound’s relatively high boiling point and low volatility help preserve intended sensory attributes. In addition to sensory contributions, 1-DECANOL can influence the functional behavior of flavor blends by modulating release rates and interactions with other ingredients. Its presence may help anchor more volatile components, promoting a balanced release over time rather than a rapid dissipation of aroma. This characteristic can be advantageous in extended consumption experiences, such as chewing gum or slow-release confectionery formats. While 1-DECANOL itself does not provide taste in the traditional sweet-salty sense, its role in the perception of aroma and mouthfeel underscores the multifaceted nature of flavor formulation, where both sensory quality and functional performance are important.

Acceptable Daily Intake Explained

Acceptable daily intake (ADI) is a concept used by regulatory and expert assessment bodies to express the amount of a substance that can be consumed daily over a lifetime without appreciable risk, based on current knowledge. ADI values are typically derived from toxicological studies, identifying a no observed adverse effect level (NOAEL) and applying uncertainty factors to account for differences between test species and humans, as well as variability within human populations. For some flavoring agents, including those evaluated by expert panels, numeric ADI values are explicitly established when sufficient data are available. In the case of 1-DECANOL, expert evaluations such as JECFA’s have concluded that existing use levels do not raise safety concerns, but a specific numeric ADI value published in a regulatory format may not be publicly listed in the available summaries. It is important to understand that the ADI is not a recommended daily target intake; rather, it provides a safety benchmark for regulators, manufacturers, and public health professionals to ensure that intake from all sources remains below levels associated with adverse effects. A compound’s inclusion in flavor inventories and safety assessments reflects that typical exposures, such as milligram quantities consumed through flavored foods and beverages, are orders of magnitude lower than doses associated with toxicological thresholds in experimental studies. For consumers, the concept of ADI underscores the principle of safety margins in food additive regulation: substances are permitted only when evidence indicates that expected exposure remains within safe bounds. In practical terms, this means that the levels of 1-DECANOL used in food products are exceedingly low relative to thresholds of concern, providing a safety assurance based on established scientific review.

Comparison With Similar Additives

1-DECANOL belongs to a broader class of fatty alcohols and related aroma compounds that are used as flavoring agents or adjuvants. For example, 1-HEXANOL, with a six-carbon chain, is another alcohol used in flavor applications that contributes fresh, green notes, whereas 1-DECANOL’s longer carbon chain yields a more subdued, fatty or waxy contribution. These differences in sensory properties arise from variations in volatility and molecular interactions with other components in a flavor blend. Another related compound, 1-OCTANOL, has an eight-carbon chain and is used in flavor systems where a balance between volatility and persistence is desired. Compared with 1-DECANOL, 1-OCTANOL typically exhibits slightly higher volatility and may impart different aroma qualities, reflecting how chain length influences both sensory perception and functional behavior in food matrices. Both compounds are evaluated within similar regulatory frameworks for safety and permissible use levels, emphasizing that structural analogs can serve complementary roles in flavor formulation. In the context of flavor chemistry, esters such as ethyl butyrate or methyl salicylate serve different sensory functions compared with fatty alcohols. While esters often provide fruity or sweet notes due to their higher volatility and distinct odor profiles, fatty alcohols like 1-DECANOL and its analogs contribute depth and continuity in aromatic perception. Formulators often combine multiple classes of compounds to achieve complex sensory outcomes, illustrating how understanding the properties of individual components informs effective formulation strategies.

Common Food Applications Narrative

In everyday food products, 1-DECANOL is encountered as one of numerous flavoring agents that collectively contribute to the sensory complexity consumers expect. It is typically incorporated into flavor formulations for products such as confectionery, beverages, dairy and dairy-alternative products, and baked goods where nuanced aroma profiles are part of the product identity. For example, in a citrus-flavored beverage, 1-DECANOL may be included in microgram-level amounts to help balance and enhance the overall aromatic character in concert with other volatile esters and terpenes. Similarly, in baked goods with fruit or cream notes, it contributes to the perception of richness and continuity in flavor, especially when combined with other lipid-soluble flavor constituents. Food technologists also use 1-DECANOL in specialized applications such as flavor systems for snacks and savory items that benefit from a subtle fatty accent, particularly where oil-based seasoning blends are involved. Its inclusion is guided by formulation objectives, matching sensory goals with regulatory allowances under relevant food additive standards. Because it is typically used in very small quantities relative to the bulk of the food matrix, the sensory impact of 1-DECANOL is subtle but meaningful within professional flavor design. Moreover, 1-DECANOL may appear in products that are formulated to deliver layered sensory experiences over time, such as chewing gum or slow-release candies. In these contexts, the compound can play a role in sustaining aroma notes that might otherwise dissipate quickly. It is important to emphasize that consumers do not interact with 1-DECANOL as an isolated ingredient; rather, it is part of carefully engineered blends that together define the final taste and smell profile of the product. Such applications illustrate the complexity of modern flavor systems, where each component contributes to a cohesive sensory outcome rather than acting in isolation.

Safety & Regulations

FDA

  • Notes: Specific FDA approval status under CFR is not directly verified with a deep link to the official CFR text, although CFR references are listed in the input and inventories indicate use.

EFSA

  • Notes: No specific EFSA E-number or numeric ADI could be confirmed from authoritative EFSA sources.

JECFA

  • Notes: JECFA evaluations note no safety concern at current use levels but do not provide a numeric ADI in the available summaries.

Sources

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