Ethyl Trans-2,cis-4-decadienoate

Ethyl trans-2,cis-4-decadienoate (CAS Number 3025-30-7) is a synthetic organic compound belonging to the ester class of flavoring molecules. Its chemical structure consists of a ten-carbon chain with two double bonds in specific geometric configurations (one trans and one cis), esterified with ethanol. This compound is classified as a flavoring agent or flavoring adjuvant and is used to impart or enhance fruit-like sensory characteristics in food and beverage products.

This synthetic flavoring agent is primarily used in the food and beverage industry as a component of complex flavor formulations. It is typically found in processed foods where natural fruit flavors are difficult to maintain or where consistent flavor profiles are required. Common applications include:

- Fruit-flavored beverages and soft drinks

- Dairy products such as yogurts and flavored milk

- Confectionery and candy products

- Baked goods and snack foods

- Frozen desserts

The compound is used in very small quantities—typically in the parts per million (ppm) range—as flavor compounds only require minimal amounts to achieve desired taste effects. It functions as part of broader flavor systems that may contain dozens of complementary compounds to create complex taste profiles.

Ethyl trans-2,cis-4-decadienoate has not been formally established as Generally Recognized As Safe (GRAS) by the U.S. Food and Drug Administration. However, this designation does not necessarily indicate a safety concern. The absence of GRAS status may reflect limited formal petition submission rather than identified hazards.

According to available FDA records, there have been zero documented adverse events associated with this compound and zero product recalls attributed to its use. This absence of reported safety incidents over decades of potential use in flavoring applications is noteworthy, though it should be considered within the context of typical reporting limitations.

As a synthetic ester flavoring compound, it belongs to a well-characterized chemical class with established toxicological profiles. Similar compounds in this structural class have been evaluated for safety, and esters are generally considered to have low toxicity when used at typical levels in food applications. The compound's sensory impact at extremely low concentrations means human exposure levels remain minimal.

In the United States, flavoring compounds not formally listed as GRAS may still be used under the Food Additives Amendment if they meet certain conditions or are included in FDA-recognized flavor standards. The regulatory pathway for synthetic flavoring agents in the U.S. allows for their use based on historical use patterns and scientific evaluation.

The European Union maintains separate approval lists for food additives, and regulatory status may differ between jurisdictions. Companies using this flavoring agent must comply with regulations in each market where their products are sold.

The compound is not among FDA-listed banned or restricted food additives, and no legal prohibitions on its use currently exist in major food-consuming nations.

Limited peer-reviewed literature specifically addresses ethyl trans-2,cis-4-decadienoate as an isolated compound. Most safety data derives from:

- General safety assessments of ester-class flavoring compounds

- Regulatory dossiers submitted to flavor ingredient authorities

- In vitro and animal toxicity studies conducted during compound development

- Long-term observational data from consumer use

The International Organization of the Flavor Industry (IOFI) and the Flavor and Extract Manufacturers Association (FEMA) maintain databases on flavor compound safety, and many synthetic esters have undergone evaluation through these organizations' expert panels.

Given the minimal human exposure levels, absence of adverse event reports, and structural similarity to approved flavoring compounds, available evidence does not suggest safety concerns at typical use levels.