BENZOIN

CAS: 119-53-9 FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT

BENZOIN (CAS 119-53-9) is an organic hydroxy ketone used as a flavoring agent or enhancer in food applications.

What It Is

BENZOIN is a chemical compound identified by CAS number 119-53-9 and is categorized as a flavor enhancer, flavoring agent, or adjuvant in food applications. It is a hydroxy ketone containing two aromatic phenyl groups attached to a central carbonyl and hydroxyl moiety, and appears as off-white to white crystalline solid in its pure form. In food formulation contexts, BENZOIN functions primarily for its aromatic and flavor-enhancing qualities rather than nutritional contribution, and it is recognized specifically for imparting fragrant, balsamic, or resinous nuances when used in small amounts. The compound has a well‑established identity in chemical databases, and its structure is characterized by the presence of a secondary alcohol adjacent to a ketone group, which contributes to its reactivity and sensory properties. BENZOIN has been evaluated and referenced in regulatory listings such as the U.S. Food and Drug Administration’s Substances Added to Food list.

How It Is Made

BENZOIN is synthesized via a classical organic chemical reaction known as the benzoin condensation, in which two molecules of benzaldehyde are joined in the presence of a cyanide or other suitable catalyst to form the hydroxy ketone framework. This synthesis route has been employed historically and in industrial settings to produce BENZOIN with high purity for use in flavoring and technical applications. In industrial production, the reaction conditions are controlled to optimize yield and purity, followed by purification steps such as recrystallization from appropriate solvents. Technical grade BENZOIN for flavoring uses would typically be manufactured under conditions that comply with good manufacturing practice (GMP) to ensure consistency and absence of harmful impurities, especially because it is intended for use in food-grade formulations. Reference materials and standards for BENZOIN are commercially available for analytical verification of identity and purity in production environments.

Why It Is Used In Food

BENZOIN’s inclusion as a flavor enhancer or flavoring agent in food formulations stems from its aromatic characteristics, which can complement or intensify other components of a food’s flavor profile. As a flavoring agent, it is chosen for its ability to contribute subtle balsamic, resinous, or nuanced aromatic notes that enhance complexity without overwhelming the inherent flavors of the food. In many applications, flavor enhancers are used to allow for lower overall usage of stronger flavoring agents while still maintaining a desirable sensory impact. BENZOIN fits within this category by serving as a complementary agent that supports the intended flavor experience. The principle of use in food is to employ such substances at the minimum level necessary to achieve the desired sensory effect and in a manner consistent with good manufacturing practice.

Adi Example Calculation

Because a specific acceptable daily intake (ADI) value for BENZOIN was not identified from authoritative regulatory sources, no illustrative calculation using a numeric ADI is provided here. When ADIs are established for a food additive, illustrative calculations typically involve multiplying the ADI (expressed as milligrams per kilogram of body weight per day) by a hypothetical body weight to estimate a safe daily intake amount for that individual body weight. The absence of an explicit numeric ADI in regulatory documentation prevents provision of such an example.

Safety And Health Research

Evaluations of flavoring agents such as BENZOIN by regulatory bodies focus on general safety aspects including purity, potential toxicity at relevant exposures, and evidence from toxicological studies. Safety assessments typically consider parameters such as genotoxicity, chronic toxicity, and metabolic fate at use levels pertinent to food exposure. In the case of BENZOIN, specific toxicological data suitable for deriving a numerical acceptable daily intake (ADI) or other exposure metric were not identified in the available regulatory sources, and therefore details on such safety thresholds are not provided here. The compound is generally used in very small amounts typical of flavoring agents rather than bulk ingredients, and safety assessments by regulators would consider both the substance’s chemical properties and historical use patterns. Because human health effects depend on dose and duration of exposure, safety conclusions emphasize the importance of using flavoring agents in accordance with good manufacturing practice and within regulatory frameworks that govern allowable use levels.

Regulatory Status Worldwide

Regulatory frameworks in various jurisdictions address the use of flavoring agents like BENZOIN under specified conditions. In the United States, the Food and Drug Administration lists BENZOIN in the Substances Added to Food database, indicating it is recognized for use in food formulations such as flavoring agents, subject to conditions of good manufacturing practice in accordance with relevant sections of Title 21 of the Code of Federal Regulations, including Part 172.515 which covers synthetic flavoring substances and adjuvants. However, specific allowable levels or precise listing status in the CFR must be confirmed from the regulatory code text itself, and no direct extracted numeric limit is referenced here. Internationally, organizations such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA) maintain databases of food additive specifications where flavoring agents can be evaluated and listed for identity and purity specifications. Comprehensive listings and monographs for many additives are available through the JECFA database, but a detailed specification citation for BENZOIN was not explicitly retrieved in the sources provided. Consequently, BENZOIN’s precise international regulatory status and numeric allowances may vary and should be confirmed from authoritative food additive lists in specific regions.

Taste And Functional Properties

BENZOIN is generally described as possessing a balsamic, warm, slightly aromatic odor profile with resinous undertones. Its sensory impression is not intensely sweet or fruity but rather contributes depth and complexity to a flavor formulation. This makes it particularly suitable in nuanced profiles such as gourmand or aromatic blends where subtle background notes are important. From a functional perspective, BENZOIN is a relatively stable compound under typical food processing conditions, and its aromatic properties are less likely to break down under moderate heating or pH variations used in many applications. Its solubility in ethanol and compatibility with other flavor constituents facilitate its use in flavor oil or extract formulations. Because flavor perception involves interaction with other ingredients, BENZOIN is often integrated in concert with other flavoring substances to achieve the desired sensory profile.

Acceptable Daily Intake Explained

An acceptable daily intake (ADI) is a regulatory concept that represents the amount of a substance that can be consumed every day over a lifetime without appreciable health risk, based on scientific evaluations and safety factors. For many food additives, ADIs are established by expert committees based on comprehensive toxicological data. In the context of flavoring agents such as BENZOIN, no specific ADI was identified in the regulatory sources referenced here, and thus a numeric value is not provided. Where ADIs are specified for additives, they guide risk assessors and manufacturers in evaluating exposure relative to safety benchmarks. The absence of a specific ADI in this case reflects the lack of a clearly documented numerical intake limit from authoritative regulatory databases in the sources consulted. Regulatory bodies often rely on expert assessment and documented use levels to ensure that exposure remains within safe boundaries.

Comparison With Similar Additives

BENZOIN shares functional similarities with other aromatic flavoring agents and enhancers such as vanillin, ethyl vanillin, and benzaldehyde, which are also used to impart or enhance aromatic qualities in food products. These compounds each contribute distinctive aromatic profiles: for example, vanillin is known for sweet vanilla notes, while benzaldehyde has a characteristic almond-like aroma. In contrast, BENZOIN’s balsamic and resinous character complements these profiles and can add depth in certain formulation contexts. From a regulatory and safety evaluation perspective, these substances are often assessed individually for purity and safety at use levels appropriate to their sensory contribution. Like BENZOIN, many flavoring agents are used at low levels and evaluated under good manufacturing practice guidelines that prioritize minimal effective concentrations in finished products.

Common Food Applications Narrative

In food and beverage formulations, BENZOIN is typically used in products where nuanced aromatic or flavor enhancement is desired. These include items with complex flavor profiles such as confectionery, baked goods, beverages with aromatic components, and other flavored consumer foods. Manufacturers may include BENZOIN in custom flavor blends alongside fruity, spicy, or sweet constituents to bolster the overall aromatic impact. Food formulators value such agents for their ability to augment sensory appeal in products like aromatic teas, specialty desserts, or artisanal confectionery. In each of these applications, BENZOIN functions not as a primary flavor but as a supporting agent that helps round out the taste experience and can improve the perceived richness or fullness of the flavor profile. Its use aligns with general formulation strategies that balance base tastes with complementary aromatic enhancers to meet consumer expectations for taste and aroma.

Safety & Regulations

FDA

  • Notes: Specific listing for BENZOIN under this section was not verified on the d CFR page.
  • Regulation: 21 CFR 172.515

EFSA

  • Notes: No EFSA specific numeric ADI or E-number identified in the provided regulatory sources.

JECFA

  • Notes: No specific JECFA numeric ADI or evaluation year was identified in the provided regulatory sources.

Sources

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