What is 2(3),5-dimethyl-6,7-dihydro-5h-cyclopentapyrazine?
2(3),5-dimethyl-6,7-dihydro-5h-cyclopentapyrazine (CAS Number: 34514-55-1) is a synthetic organic compound classified as a flavoring agent. It belongs to the pyrazine family, a group of nitrogen-containing aromatic compounds commonly used in the flavor industry. The compound is characterized by its cyclopentapyrazine ring structure with two methyl substituents and a partially saturated ring system. Pyrazines are known for their ability to produce complex roasted, nutty, and savory flavor profiles at very low concentrations.
Common Uses
This flavoring compound is utilized in food manufacturing as a flavoring agent or adjuvant to enhance or create specific taste profiles in processed foods. Typical applications include:
- Savory snacks and chips
- Processed meat products
- Cheese-flavored foods
- Soup bases and seasonings
- Baked goods and grain products
- Meat analogs and plant-based proteins
Pyrazines like this compound are valued in the food industry because they can replicate naturally occurring flavor notes from cooking, roasting, and fermentation processes at concentrations measured in parts per billion, making them cost-effective and consistent flavoring solutions.
Safety Assessment
No adverse events have been reported to the FDA regarding this additive, and there are no FDA recalls associated with it. The compound has not been subjected to the FDA's Generally Recognized as Safe (GRAS) process, which means it has not gone through the formal self-affirmed GRAS notification pathway. However, the absence of GRAS status does not indicate the substance is unsafe; rather, it reflects the regulatory pathway and industry practices at the time of its use.
As with other synthetic flavoring agents, this compound is used at very low concentrations in food products—typically in the range of parts per billion to parts per million. At such minimal exposure levels, the margin of safety is typically substantial. Pyrazine compounds in general have been studied for decades due to their widespread use in flavoring applications, and they have not been associated with significant toxicological concerns at typical dietary exposures.
Regulatory Status
In the United States, this additive falls under the category of synthetic flavoring substances. While it does not have FDA GRAS status, it may be used in food products under FDA regulations permitting the use of synthetic flavoring agents when they meet safety standards and are used at appropriate levels. The FDA maintains oversight of flavoring compounds through regulations in 21 CFR Part 182 and related sections.
The regulatory status varies internationally. The European Food Safety Authority (EFSA) maintains a flavoring substances database, and similar compounds are evaluated through their scientific panels. Individual countries and regions may have different permissions and restrictions on specific flavoring agents based on their risk assessment frameworks.
Key Studies
Specific published toxicological studies on 2(3),5-dimethyl-6,7-dihydro-5h-cyclopentapyrazine are limited in the public scientific literature. However, the broader pyrazine family has been the subject of numerous investigations regarding flavor perception, metabolism, and safety. Research has consistently shown that pyrazines are rapidly metabolized and do not bioaccumulate in tissues. General toxicology studies on related pyrazine compounds have not identified concerning safety signals at exposure levels relevant to food use.
The flavor industry regularly conducts proprietary safety assessments on new flavoring compounds, often following guidelines established by the Flavor and Extract Manufacturers Association (FEMA) and scientific committees. Such assessments typically include absorption, distribution, metabolism, and excretion (ADME) studies, as well as standard toxicity testing protocols.