What is Undecanal Propyleneglycol Acetal?
Undecanal propyleneglycol acetal (CAS Number 74094-62-7) is a synthetic organic compound classified as a flavoring agent. It is produced through a chemical reaction between undecanal, an 11-carbon aldehyde, and propylene glycol, a common food ingredient and solvent. The resulting acetal is a colorless to pale yellow liquid used to impart fruity, fresh, and slightly floral taste characteristics to food and beverage products.
This compound belongs to the broader category of acetals, which are organic compounds formed from aldehydes and alcohols. In the context of food flavoring, acetals are valued for their stability and ability to deliver sustained flavor profiles during food processing and storage.
Common Uses
Undecanal propyleneglycol acetal is used primarily as a flavoring adjuvant in food manufacturing. Its applications include:
- Beverages: fruity and floral notes in soft drinks, juices, and flavored waters
- Confectionery: candy, chewing gum, and chocolate products
- Dairy products: flavored yogurts and milk-based beverages
- Baked goods: pastries, cookies, and other processed baked items
- Desserts and ice cream: enhancement of fruity flavor profiles
The compound typically appears in finished products in very small quantities, as is standard for synthetic flavoring agents. Manufacturers select it based on its specific sensory properties and chemical stability profile.
Safety Assessment
Undecanal propyleneglycol acetal has not received GRAS (Generally Recognized As Safe) status from the FDA, meaning it does not have formal FDA affirmation through the established GRAS review process. However, this regulatory classification does not indicate a safety concern; rather, it reflects that the additive has not undergone or completed the formal FDA GRAS notification procedure.
The available evidence indicates a favorable safety profile:
- **FDA Adverse Events**: Zero reported adverse events associated with this additive in FDA databases
- **Recall History**: No FDA recalls involving this ingredient
- **Chemical Structure**: The compound's structure as an acetal of a natural-origin aldehyde and propylene glycol (itself widely used in food) suggests low toxicological concern
Like all synthetic flavoring agents, undecanal propyleneglycol acetal is used at levels far below those that would present any practical safety risk. Typical flavoring compounds are used at concentrations measured in parts per million in finished foods.
Regulatory Status
The regulatory status of undecanal propyleneglycol acetal varies internationally:
**United States**: While not formally GRAS-affirmed, it may be used in foods under FDA flavor regulations as a flavoring substance. The FDA maintains regulations allowing certain flavoring compounds based on their chemical structure and use history.
**European Union**: The ingredient would be subject to EU regulations on flavorings (EU Regulation 1334/2008), though specific approval status should be verified through the European Commission's flavor register.
**Other Jurisdictions**: Different countries maintain their own flavor approval lists and requirements for imported foods containing specific flavoring agents.
Manufacturers using this ingredient must ensure compliance with all applicable regulations in their target markets.
Key Studies
Limited published independent research is available specifically on undecanal propyleneglycol acetal, which is typical for specialized synthetic flavoring compounds used in small quantities. The compound's safety assessment generally relies on:
- Structural similarity to established safe flavor components
- The well-documented safety profile of propylene glycol as a food ingredient
- Chemical stability data and intended use levels
- Absence of adverse events in FDA databases
Flavor safety assessments are often conducted by the flavor industry's expert panels, such as the Flavor and Extract Manufacturers Association (FEMA), though published details may be proprietary. The lack of reported safety concerns over decades of potential use in food products provides practical safety reassurance.