What is 2-pentadecanone?
2-pentadecanone, also known as methyl tridecyl ketone, is an organic compound with the chemical formula C₁₅H₃₀O. It is a ketone—a class of organic molecules characterized by a carbonyl group bonded to two carbon atoms. This compound occurs naturally in various plants and foods, though it is also produced synthetically for use as a flavoring agent in the food industry.
The substance has a molecular weight of 226.40 g/mol and is registered with CAS Number 2345-28-0. As a flavoring compound, 2-pentadecanone is used in very small quantities to enhance or modify the sensory characteristics of food and beverage products.
Common Uses
2-pentadecanone is utilized primarily as a flavoring agent and flavor adjuvant in the food industry. Its applications typically involve enhancing or creating specific flavor profiles in processed foods, beverages, and flavoring formulations. Like many complex flavoring compounds, it is used in trace amounts—often measured in parts per million—to achieve desired sensory effects without significantly altering the nutritional composition of foods.
The compound may be found in various food categories where flavor enhancement is desired, though its use is not widespread across all food types. Its specific aromatic properties make it suitable for particular flavor applications that require subtle, complex taste notes.
Safety Assessment
According to FDA records, there are zero reported adverse events associated with 2-pentadecanone, and no recalls have been issued involving this substance. This absence of reported safety incidents suggests a benign safety profile in practical food applications at typical usage levels.
The compound has not been formally designated as GRAS (Generally Recognized As Safe) by the FDA, meaning it has not undergone the standard GRAS notification process. However, the lack of GRAS status does not necessarily indicate a safety concern; rather, it reflects the regulatory pathway and assessment history of the substance. Many flavoring compounds function safely in food without formal GRAS designations, particularly if they have established use histories or minimal exposure levels.
As a naturally occurring compound found in various plant sources, 2-pentadecanone exists in the food supply through natural means in addition to intentional use as a flavoring agent. This natural occurrence provides additional context for understanding its safety profile.
Regulatory Status
2-pentadecanone is not currently listed on the FDA's official GRAS list. However, it may be used in flavoring formulations under FDA regulations governing indirect food additives and flavor components, provided usage levels comply with applicable regulations and safety data supports its use.
The regulatory landscape for flavoring compounds is complex. While some flavorings require explicit FDA approval, others operate under different regulatory frameworks. The absence of GRAS status does not prohibit use; rather, it indicates the specific regulatory pathway the substance follows.
Key Studies
Scientific literature on 2-pentadecanone is limited, reflecting its specialized role as a minor flavoring component. Most research involving this compound has focused on its identification and characterization in natural food sources and essential oils rather than safety toxicology studies.
The lack of published adverse event data and the zero FDA reports of harm provide practical evidence supporting its safety profile at levels of use typical in flavoring applications. Natural occurrence in foods and plants contributes to the overall assessment that this compound presents minimal concern at traditional usage concentrations.
Additional research or toxicological evaluation would strengthen the evidence base, particularly regarding potential effects at higher-than-typical exposure levels, though such exposures are unlikely in normal food consumption patterns.