What is Furfuryl 3-methylbutanoate?
Furfuryl 3-methylbutanoate (CAS Number 13678-60-9) is a synthetic organic compound classified as an ester. It consists of a furfuryl alcohol moiety bonded to isovaleric acid (3-methylbutanoic acid). This compound belongs to the broader category of flavoring agents used in the food industry to enhance or create specific taste profiles in consumer products.
The furfuryl component derives from furan chemistry, while the 3-methylbutanoate (isovalerate) portion is a naturally occurring compound found in various fruits and fermented products. The synthetic combination creates a distinct flavoring compound intended for use in food manufacturing.
Common Uses
Furfuryl 3-methylbutanoate is used as a flavoring agent or flavor adjuvant in food products. Its intended applications include:
- Beverages (non-alcoholic and alcoholic)
- Confectionery and candy products
- Baked goods
- Dairy products
- Processed snack foods
As a flavor component, it would typically be used in very small quantities—measured in parts per million (ppm)—to achieve desired sensory characteristics. The specific flavor profile it imparts is consistent with fruity, slightly fermented, or complex taste notes.
Safety Assessment
Furfuryl 3-methylbutanoate has not been granted GRAS (Generally Recognized As Safe) status by the FDA. However, this designation does not indicate the substance is unsafe; rather, it means formal GRAS affirmation has not been pursued or completed through the FDA process.
The FDA Adverse Event Reporting System (FAERS) contains zero reported adverse events associated with this additive. Additionally, there are no FDA recalls linked to products containing this flavoring agent. These metrics suggest the substance has not raised acute safety concerns in the U.S. food supply.
The toxicological profile of related compounds (furfuryl compounds and isovalerate esters) generally demonstrates low acute toxicity. However, comprehensive chronic safety data specific to this particular compound appears limited in publicly available literature.
Regulatory Status
Furfuryl 3-methylbutanoate does not have FDA GRAS status, meaning it may not be used as a direct food additive in the United States without prior FDA approval or petition. Its use would require either:
1. A successful GRAS notification submission to the FDA
2. A Food Additive Petition (FAP) requesting FDA approval
3. Status as a component of an approved flavor mixture under specified regulations
In the European Union, this compound may be evaluated under the EU's flavoring regulations (EC No 1334/2008), though its specific regulatory status varies by jurisdiction.
Manufacturers seeking to use this flavoring agent in food products should verify current regulatory status in their target markets and comply with applicable food additive regulations.
Key Studies
Limited peer-reviewed safety data is readily available specifically for furfuryl 3-methylbutanoate. Available information relies largely on:
- Structure-activity relationship (SAR) analysis comparing similar ester compounds
- General toxicology data for furfuryl compounds and isovalerate esters
- FDA adverse event monitoring (zero reported incidents)
The absence of reported adverse events and recalls suggests acceptable safety margins in practical food applications. However, interested parties should consult the FDA's Flavor and Extract Manufacturers' Association (FEMA) GRAS list and supporting documentation for broader context on related flavoring compounds.