What is 2-methyl-4-phenyl-2-butyl Isobutyrate?
2-methyl-4-phenyl-2-butyl Isobutyrate (CAS Number 10031-71-7) is a synthetic organic compound belonging to the ester family of flavoring substances. It is composed of isobutyric acid combined with a complex alcohol moiety containing a phenyl group. The compound is primarily used in the fragrance and flavoring industries to create or enhance fruity and floral aromatic profiles in food and beverage applications.
Common Uses
This flavoring agent is utilized in various processed food and beverage categories, including:
- Confectionery and candy products
- Flavored beverages and soft drinks
- Dairy-based flavored products such as yogurts and ice cream
- Baked goods and pastries
- Chewing gums
- Flavor compounds for industrial food manufacturing
The compound is typically used at very low concentrations, as is standard practice with synthetic flavoring agents, to achieve desired taste and aroma characteristics without significantly impacting the nutritional profile of finished products.
Safety Assessment
2-methyl-4-phenyl-2-butyl Isobutyrate has not been formally designated as Generally Recognized as Safe (GRAS) by the FDA. However, this designation status does not inherently indicate safety concerns. The FDA has recorded zero adverse events and zero recalls associated with this ingredient, suggesting no documented safety issues in actual consumer use.
The lack of reported adverse events indicates that any exposure through food consumption has not resulted in documented health complaints or safety investigations. The absence of recalls further supports that no quality, contamination, or safety issues have been identified during its use in food products.
As with most synthetic flavoring compounds, the safety profile is typically based on:
- Established acceptable daily intake (ADI) limits
- Acute and chronic toxicity testing data
- Metabolism and excretion patterns
- Intended use levels and actual dietary exposure
Synthetic esters of this type are generally considered to have low toxicity profiles, particularly given their minimal presence in final food products.
Regulatory Status
In the United States, while not GRAS-designated, 2-methyl-4-phenyl-2-butyl Isobutyrate may be permitted for use in food flavorings under FDA regulations. The FDA maintains lists of approved flavoring substances, and many synthetic flavoring compounds are regulated through specific food additive petitions or are evaluated through the Flavor and Extract Manufacturers' Association (FEMA) GRAS program.
The regulatory approach to synthetic flavoring agents reflects the principle that these substances are used in extremely small quantities and undergo rapid metabolism. The burden of documentation for safety is typically lower than for non-flavoring additives because the intended use levels are inherently minimal.
International regulatory status may vary by country, with some nations accepting this ingredient under their respective flavoring substance frameworks while others may require specific approval documentation.
Key Studies
Limited published scientific literature specifically addresses this individual compound, which is consistent with the general category of synthetic flavoring agents. Safety evaluation for this type of compound typically relies on:
- Structure-activity relationship (SAR) modeling based on similar ester compounds
- Bacterial reverse mutation assays (Ames testing)
- Absorption, distribution, metabolism, and excretion (ADME) studies
- Comparison with chemically similar substances with established safety records
The fragrance and flavor industry maintains proprietary safety databases and submission records with regulatory agencies that document testing results, though individual study details may not be publicly available.
The zero adverse events and zero recalls reported by the FDA suggest that decades of potential consumer exposure has not raised documented safety flags, providing real-world evidence of safety in actual use conditions.