Trans-3-nonen-1-ol

Trans-3-nonen-1-ol (CAS Number: 10339-61-4) is a nine-carbon aliphatic alcohol classified as a flavoring agent. It is an unsaturated alcohol with a double bond at the third carbon position, occurring naturally in various fruits and plant materials. The compound belongs to the broader category of flavor compounds that are used to impart or enhance taste and aroma in food and beverage applications.

Trans-3-nonen-1-ol is utilized primarily in the flavor industry as a component of complex flavor formulations. It appears in products such as beverages, confectionery, baked goods, and dairy products where fruity or floral flavor profiles are desired. The compound is typically used in very small concentrations—measured in parts per million (ppm)—reflecting its potent sensory characteristics. As a flavoring adjuvant, it may be combined with other flavor compounds to achieve specific taste profiles rather than being used independently.

The available safety data for trans-3-nonen-1-ol is limited but does not indicate significant safety concerns at levels of use in foods. The FDA has not granted this compound GRAS (Generally Recognized As Safe) status, which indicates that sufficient publicly available evidence has not been compiled to support this designation through the standard regulatory pathway. However, the absence of GRAS status does not indicate the compound is unsafe—rather, it reflects the status of regulatory documentation and review processes.

Notably, there are zero reported adverse events associated with trans-3-nonen-1-ol in FDA databases, and no recalls have been issued involving this compound. This absence of reported safety incidents suggests that the compound has not been identified as causing harm at current levels of food use. The compound's structural similarity to naturally occurring alcohols in fruits and plants supports its general safety profile when used in appropriate food applications.

Toxicological data on this compound remains limited in the published scientific literature, which is typical for many naturally occurring flavor compounds used in minimal quantities. The low concentration at which flavor compounds are typically used—often below detectable levels in finished products—further reduces potential exposure concerns.

Trans-3-nonen-1-ol operates in a regulatory gray area in many jurisdictions. In the United States, while not GRAS-listed, it may be used under the Food and Drug Administration's regulations as a flavoring substance if it complies with 21 CFR Part 182 or can be justified through other regulatory pathways. The European Food Safety Authority (EFSA) maintains standards for flavor compounds used in the EU, though trans-3-nonen-1-ol's specific EFSA approval status should be verified for European market applications.

Manufacturers using this flavoring agent are responsible for ensuring compliance with applicable regulations in their target markets and maintaining appropriate documentation of safety for their specific applications.

Direct published research specifically examining trans-3-nonen-1-ol is limited. The compound has been identified in natural products including various fruits and essential oils through analytical chemistry studies, supporting its natural occurrence. Most safety information derives from structural analog studies of similar aliphatic alcohols and general knowledge of the flavor chemical class rather than direct clinical investigation of this specific compound.

Additional research examining this flavoring agent's metabolism, toxicological properties at levels exceeding food use, and detailed safety profiles would provide more comprehensive data, though the absence of reported adverse events suggests current use levels remain safe.