What is Cyclohexyl Acetate?
Cyclohexyl acetate (CAS Number 622-45-7) is a colorless to pale yellow liquid organic compound belonging to the ester family. It is formed through the esterification of cyclohexanol and acetic acid. The compound has a characteristic fruity and floral aroma with subtle herbaceous undertones, making it valuable in the flavor industry. It occurs naturally in some fruits and plants, though the compound used in food manufacturing is typically produced through synthetic processes.
Common Uses
Cyclohexyl acetate is utilized as a flavoring agent and flavor adjuvant in the food and beverage industry. It appears in formulations for:
- Fruit-flavored beverages and soft drinks
- Confectionery and candy products
- Baked goods and pastries
- Dairy products including yogurts and flavored milks
- Chewing gum and mints
- Processed snacks
The compound is used in very small concentrations, typically measured in parts per million (ppm), to achieve desired flavor profiles without contributing significantly to the final product's composition. Its role is to enhance, round out, or modify existing flavors rather than serve as a primary flavor component.
Safety Assessment
Cyclohexyl acetate has not been subjected to formal FDA GRAS (Generally Recognized as Safe) determination, which means it has not received official FDA approval through the GRAS notification process. However, this does not indicate the substance is unsafe; rather, it reflects the regulatory status and testing pathway chosen by manufacturers.
According to FDA records, there have been zero adverse events reported in connection with cyclohexyl acetate, and no product recalls have been issued due to this additive. These figures suggest no widespread safety concerns have emerged from its use in the food supply.
The compound's chemical structure—as an aliphatic ester—places it in a class of chemicals generally recognized as safe when used in appropriate quantities. Esters of this type are metabolized in the body through standard esterase enzyme pathways, breaking down into their constituent alcohol and acid components, which are further metabolized through normal biochemical routes.
Inhalation exposure to cyclohexyl acetate vapor has been studied in occupational settings, with evidence suggesting relatively low acute toxicity. The compound does not appear to be genotoxic or carcinogenic based on available scientific literature. Dermal sensitization potential is considered low to minimal.
Regulatory Status
While not GRAS-affirmed in the United States, cyclohexyl acetate is permitted for use as a flavoring substance in foods under FDA regulations, provided it meets purity and identity specifications. The European Food Safety Authority (EFSA) has evaluated this compound, and it appears in the flavor compound database used by European regulators.
The compound is listed in various flavor industry databases and specifications guides, including those maintained by the International Organization of the Flavor Industry (IOFI) and the Flavor and Extract Manufacturers Association (FEMA). Its status as an approved flavoring substance reflects decades of safe use in food applications across multiple jurisdictions.
Key Studies
Limited published peer-reviewed research specifically examines cyclohexyl acetate in isolation, which is typical for widely-used minor flavor compounds. Safety evaluations have primarily been conducted within industry and regulatory frameworks rather than published in academic journals.
Toxicological data on related acetate esters and similar aliphatic esters provide a supportive safety context. These compounds generally demonstrate low toxicity profiles when ingested in food-relevant amounts. The absence of reported adverse events despite decades of use in food products provides practical evidence of safety under normal consumption conditions.
Research on flavor compound metabolism indicates that acetate esters are readily hydrolyzed in the gastrointestinal tract and liver, with rapid elimination, reducing potential for bioaccumulation or systemic toxicity.