What is 3-methyl-2-cyclohexen-1-one?
3-methyl-2-cyclohexen-1-one (CAS Number: 1193-18-6) is a synthetic flavoring compound belonging to the class of cyclic ketones. It is a colorless to pale yellow liquid with a characteristic woody and herbaceous odor. The compound is chemically produced through organic synthesis rather than derived from natural sources, though similar aromatic compounds exist in nature. Its molecular structure consists of a six-membered carbon ring with a ketone functional group and a methyl substituent, which contribute to its distinctive sensory properties.
Common Uses
This flavoring agent is used primarily in the food and beverage industry to create or enhance woody, herbaceous, and slightly earthy flavor notes. It may be incorporated into products such as baked goods, beverages, confectionery, and savory preparations where such flavor profiles complement the overall taste experience. The compound is typically used in very small concentrations, as is standard practice with synthetic flavoring agents, to achieve the desired sensory effect without overwhelming other flavor components. Its application follows standard flavoring industry practices where minimal amounts produce the intended organoleptic impact.
Safety Assessment
According to FDA records, there have been zero adverse events reported in association with 3-methyl-2-cyclohexen-1-one, and no food recalls have been initiated related to this compound. This absence of reported safety incidents suggests a favorable safety profile in practical food use. The compound has not generated documented toxicological concerns in the available scientific literature at the exposure levels typical of food flavoring applications.
Like many synthetic flavoring agents, the safety of 3-methyl-2-cyclohexen-1-one is based on its intended use pattern: application in minimal quantities where the actual dietary exposure is extremely low. This principle of threshold of toxicological concern (TTC) is fundamental to flavoring safety assessment, as synthetic flavor compounds are designed for use at parts-per-million or lower concentrations in finished food products.
Regulatory Status
3-methyl-2-cyclohexen-1-one is not currently listed on the FDA's Generally Recognized as Safe (GRAS) list. This designation does not indicate safety concerns but rather reflects that the compound has not undergone the formal GRAS notification process with the FDA. Some flavoring agents operate under different regulatory pathways, including those based on the Flavor and Extract Manufacturers' Association (FEMA) GRAS status or inclusion in the International Organization for Standardization (ISO) guidelines for flavoring substances.
Manufacturers and users of this compound in food applications should verify its regulatory status in their specific jurisdiction, as international regulations vary. The absence of GRAS designation does not prevent legal use in certain contexts where other regulatory pathways apply.
Key Studies
The scientific literature on 3-methyl-2-cyclohexen-1-one remains limited in the public domain, which is not uncommon for specialty synthetic flavoring agents. The lack of extensive published research should be understood in context: the compound is used at very low exposure levels, and flavoring safety is typically evaluated using predictive models and structural analogy approaches rather than extensive human studies. The zero reported adverse events and zero recalls in FDA databases indicate practical safety in food use.