Cis,cis-3,6-nonadienyl Acetate

Cis,cis-3,6-nonadienyl acetate (CAS Number: 83334-93-4) is a synthetic organic compound belonging to the class of esters used in food flavoring. It is a volatile compound characterized by a fruity and floral aroma profile. The molecule consists of a nine-carbon backbone with two cis-configured double bonds, esterified with acetic acid. This structural configuration contributes to its specific sensory properties and makes it useful in creating complex flavor profiles in processed foods.

This flavoring agent is employed in the food industry to enhance or create fruity and floral notes in various products. It is typically used in small concentrations in processed foods, beverages, confectionery, and dairy products. The compound's aromatic profile makes it particularly useful in products designed to have apple, pear, or other fruit-like flavor characteristics. As with most synthetic flavoring agents, it functions at very low levels—often in the parts per million range—to achieve the desired sensory effect without dominating the product's overall flavor profile.

Cis,cis-3,6-nonadienyl acetate has not been affirmed as Generally Recognized as Safe (GRAS) by the FDA, meaning it has not undergone the formal GRAS notification process. However, this classification does not indicate a safety concern; rather, it reflects the regulatory pathway and market usage history. The FDA's adverse events database contains no reported safety incidents associated with this additive, and no product recalls have been linked to it. The absence of adverse events and recalls suggests no apparent safety signals have emerged from its use in food products.

Toxicological data on this compound remains limited in public literature, which is not uncommon for specialized synthetic flavoring agents with narrow applications. Many flavor compounds are used at such minimal concentrations that comprehensive toxicological studies may not be conducted or may be proprietary to manufacturers. The lack of reported harm, combined with its restricted use at very low levels, suggests a reasonable safety profile, though the limited publicly available data means absolute safety certainty cannot be definitively established.

In the United States, cis,cis-3,6-nonadienyl acetate is permitted for use as a flavoring agent under FDA regulations, specifically 21 CFR §182.60, which allows synthetic flavoring substances and adjuvants to be used in food. However, its lack of GRAS affirmation means that companies using it must ensure compliance with applicable food additive regulations and labeling requirements. The European Food Safety Authority (EFSA) maintains a flavor compounds database, though comprehensive public assessments on this specific compound may not be readily available.

Manufacturers using this additive must comply with Good Manufacturing Practice (GMP) guidelines, which establish maximum use levels based on scientific evidence of safety and functional necessity. The compound may be listed on product labels simply as "natural flavor" or "artificial flavor," depending on its origin and processing, rather than by its specific chemical name.

Public scientific literature specifically evaluating cis,cis-3,6-nonadienyl acetate is limited. Most safety data for specialized flavor compounds comes from proprietary manufacturer studies submitted to regulatory agencies or from broader assessments of ester-class flavoring compounds. The lack of published independent studies does not necessarily indicate a safety concern but reflects the specialized nature of synthetic flavoring chemistry and the regulatory framework that governs these compounds. The zero adverse events reported to the FDA over its period of use represents the primary body of real-world safety evidence available for this substance.