What is Cyclohexyl Butyrate?
Cyclohexyl butyrate is a synthetic ester compound with the chemical formula C₁₀H₁₈O₂ and CAS number 1551-44-6. It belongs to the class of organic compounds known as butyrate esters, which are created through the chemical reaction between butyric acid and cyclohexanol. The resulting compound is a colorless to pale yellow liquid with a characteristic fruity and buttery odor profile.
This additive is classified as a flavoring agent or flavoring adjuvant in food chemistry. As a synthetic flavor, it does not occur naturally but is manufactured through chemical synthesis for use in the food industry.
Common Uses
Cyclohexyl butyrate is utilized in the food and beverage industry primarily as a flavoring component. Its fruity and buttery aromatic properties make it suitable for inclusion in a variety of products, including:
- Confectionery and candy products
- Baked goods and desserts
- Dairy products such as yogurt and ice cream
- Beverages including soft drinks and flavored water
- Savory snack foods
The compound is typically used in very small quantities, as is standard for synthetic flavor compounds. These minute concentrations are sufficient to provide the desired sensory profile while maintaining overall product quality and consumer safety.
Safety Assessment
Cyclohexyl butyrate currently has no recorded adverse events in FDA databases and has never been subject to a food recall. This absence of reported safety incidents reflects a favorable safety profile in practical food applications.
However, it is important to note that this additive is not included on the FDA's GRAS (Generally Recognized as Safe) list. This classification status does not inherently indicate safety concerns but rather reflects that the compound has not undergone the specific regulatory pathway for GRAS determination. Compounds may be used in foods through alternative regulatory pathways, such as through food additive petitions or as part of established ingredient specifications.
The toxicological profile of cyclohexyl butyrate has been studied in scientific literature. Like many ester-based flavoring compounds, it is expected to undergo hydrolysis in the digestive system, breaking down into its constituent butyric acid and cyclohexanol components. Butyric acid is a naturally occurring short-chain fatty acid found in various foods and produced endogenously in human metabolism.
Dermal and eye irritation studies on similar ester compounds suggest that cyclohexyl butyrate presents minimal irritation risk at typical use concentrations. Inhalation exposure studies in occupational settings show relatively low acute toxicity for vapor exposure.
Regulatory Status
In the United States, cyclohexyl butyrate's regulatory status is as a flavoring substance that may be permitted for use in food under the FDA's food additive regulations, though it does not carry GRAS status. Different regulatory jurisdictions may have varying approval statuses for this compound.
The European Food Safety Authority (EFSA) maintains separate assessments for food additives approved in the European Union. Regulatory approval status may differ between regions, and manufacturers must comply with applicable regulations in their target markets.
Key Studies
Scientific literature on cyclohexyl butyrate specifically is limited compared to more widely used flavor compounds. However, research on structurally similar butyrate esters provides relevant safety data. Studies examining ester-based flavorings generally demonstrate that these compounds are metabolized efficiently and do not accumulate in tissues.
The absence of cumulative toxicity concerns, combined with zero reported adverse events and recalls, suggests that cyclohexyl butyrate poses minimal risk when used in appropriate food applications at typical flavoring concentrations. Continued monitoring through existing FDA adverse event reporting systems provides ongoing safety surveillance.