What is Phenethyl Formate?
Phenethyl formate (CAS Number 104-62-1) is an organic ester formed from phenethyl alcohol and formic acid. It belongs to the class of volatile flavor compounds known as esters, which naturally occur in many fruits and flowers. The compound is colorless to pale yellow and possesses a characteristic fruity and floral aroma with subtle honey notes.
Common Uses
Phenethyl formate is employed as a flavoring agent in the food industry to enhance or create fruity and floral flavor profiles. Typical applications include:
- Alcoholic beverages (liqueurs, wines)
- Soft drinks and non-alcoholic beverages
- Confectionery and candy products
- Baked goods
- Dairy products
- Dessert and flavoring preparations
The compound is used at very low concentrations, typically measured in parts per million (ppm), which is standard practice for potent flavor compounds. Its fruity-floral character makes it particularly useful for creating or enhancing berry, citrus, and exotic fruit flavor profiles.
Safety Assessment
Phenethyl formate has no reported adverse events associated with its use in food applications according to FDA records. Additionally, there are zero product recalls linked to this ingredient. The compound does not appear on FDA enforcement action lists or warning lists.
As an ester, phenethyl formate is structurally similar to many naturally occurring flavor compounds found in fruits and vegetables. The phenethyl alcohol component is itself recognized as a naturally occurring flavor compound found in fruits, flowers, and fermented foods. Formic acid, the other component, is a naturally occurring organic acid present in many foods.
The lack of reported adverse events combined with its use at minimal concentrations suggests a favorable safety profile in food applications. However, like all flavor compounds, it should only be used at levels considered safe for human consumption.
Regulatory Status
Phenethyl formate is not currently listed on the FDA's Generally Recognized as Safe (GRAS) list. This does not indicate that the ingredient is unsafe; rather, it means that it has not undergone the formal GRAS notification process with the FDA. Many flavor compounds function under FDA regulations as color additives or food additives that have been approved through the food additive petition process or historical use.
The compound is permitted for use in flavoring formulations in the United States under the Code of Federal Regulations (CFR) as part of the category of synthetic flavoring substances. Its use is subject to FDA oversight and must comply with regulations limiting the quantity to amounts consistent with good manufacturing practices (GMP).
In the European Union, phenethyl formate is listed in the EFSA's Register of Flavoring Substances and may be used in food flavoring applications under EFSA's established safety guidelines.
Key Studies
While phenethyl formate has not been the subject of extensive independent toxicological studies, its safety profile is supported by:
- Its structural similarity to naturally occurring flavor compounds
- Zero recorded adverse events in FDA databases despite decades of food use
- Its very low concentrations of use in food products (typically below 1 ppm)
- Regulatory acceptance in multiple jurisdictions
- The safety profiles of its component parts (phenethyl alcohol and formic acid)
The compound's long history of use without reported incidents suggests adequate safety margins at approved usage levels. However, consumers with specific sensitivities to flavor compounds or phenolic compounds should be aware of its presence in flavored products.