What is 6,7-dihydro-2,3-dimethyl-5h-cyclopentapyrazine?
6,7-dihydro-2,3-dimethyl-5h-cyclopentapyrazine (CAS Number: 38917-63-4) is a synthetic organic compound belonging to the pyrazine family of chemicals. Pyrazines are heterocyclic aromatic compounds widely used in the flavor and fragrance industry. This particular compound is a dihydro derivative, meaning it contains two fewer double bonds than its fully aromatic counterpart, which affects its sensory properties and chemical stability.
Common Uses
This flavoring agent is primarily used in processed foods to create or enhance savory, roasted, and nutty flavor profiles. Common applications include:
- Potato chips and savory snacks
- Processed cheese products
- Meat flavoring compounds
- Grain-based products
- Soup and broth seasonings
- Savory condiments
The compound works synergistically with other flavor components to develop complex taste profiles characteristic of roasted or cooked foods. Its use allows manufacturers to achieve desired flavor notes without relying solely on traditional cooking processes or natural ingredients.
Safety Assessment
This additive has generated no reported adverse events in FDA surveillance systems and has not been associated with any food recalls. The compound has a history of use in food flavoring applications, with an estimated low exposure level through typical food consumption patterns.
The absence of adverse event reports and recalls suggests a favorable safety profile in normal use conditions. However, the compound has not been formally approved by the FDA under the Generally Recognized as Safe (GRAS) classification, meaning it has not undergone the formal GRAS notification process. This does not necessarily indicate safety concerns; rather, it reflects that the manufacturer or supplier has not submitted a GRAS affirmation petition or that such submission may not have been completed.
Like all synthetic flavor compounds, consumption occurs at very low levels—typically measured in parts per million in finished food products. The flavor industry generally applies strict limits on such compounds to achieve desired sensory effects at minimal exposure levels.
Regulatory Status
In the United States, the regulatory pathway for flavoring substances includes the GRAS designation, FDA approval through food additive petitions, or direct food contact use based on historical precedent. 6,7-dihydro-2,3-dimethyl-5h-cyclopentapyrazine has not received GRAS affirmation from the FDA, which means it has not been formally evaluated through that streamlined process.
The compound may be used in foods under FDA regulations if it complies with relevant flavor use restrictions and quality standards. The Flavor and Extract Manufacturers' Association (FEMA) maintains Expert Panel assessments for flavor substances, and such compounds are often evaluated through this industry-standard mechanism.
International regulatory frameworks, including those of the European Union and other countries, may have different approval statuses for this compound. Manufacturers are responsible for ensuring compliance with regulations in jurisdictions where products are marketed.
Key Studies
Specific published toxicological studies focused solely on 6,7-dihydro-2,3-dimethyl-5h-cyclopentapyrazine are limited in the scientific literature. However, safety assessment of structurally related pyrazine compounds and dihydro derivatives has been conducted by flavor industry panels and regulatory bodies.
The Flavor and Extract Manufacturers' Association's Expert Panel has evaluated many similar pyrazine-based flavoring compounds. These assessments typically consider absorption, distribution, metabolism, and excretion patterns, along with available toxicity data. Most simple pyrazine derivatives are metabolized readily by mammalian systems and do not bioaccumulate.
Toxicological assessment of related compounds suggests low acute toxicity and minimal chronic health concerns at typical dietary exposure levels. The absence of reported adverse events in FDA databases supports a favorable safety profile for routine use in food applications.