What is 6-methyl-3,5-heptadien-2-one?
6-methyl-3,5-heptadien-2-one (CAS Number 1604-28-0) is an unsaturated ketone compound classified as a flavoring ingredient. It is a volatile organic compound that occurs naturally in various plant sources, including fruits, herbs, and spices. The compound features a seven-carbon backbone with two double bonds and a ketone functional group, giving it distinctive aromatic properties.
Common Uses
This flavoring agent is used primarily in the food and beverage industry to impart or enhance fruity, herbaceous, and spicy flavor notes. It is commonly incorporated into:
- Fruit-flavored beverages and juices
- Confectionery products
- Baked goods and desserts
- Spice and herb flavor blends
- Savory food applications
- Functional foods and dietary supplements
The compound is employed at very low concentrations, typically in the parts per million (ppm) range, as is standard for most flavoring agents used in food manufacturing.
Safety Assessment
6-methyl-3,5-heptadien-2-one has not generated safety concerns in available regulatory databases. The FDA has received zero adverse event reports associated with this ingredient, and no recalls have been issued involving this compound. These data points suggest a reasonable safety profile during typical food use.
The compound's safety profile is further supported by its natural occurrence in food sources and its use at minimal concentrations in processed foods. As with all flavor ingredients, the safety of 6-methyl-3,5-heptadien-2-one is evaluated based on its intended use levels, chemical structure, and metabolic fate in the body.
Toxicological considerations for such compounds typically include acute toxicity, subchronic toxicity, and genotoxicity assessments. While comprehensive published toxicology studies specific to this ingredient may be limited in the open literature, the absence of adverse events and regulatory action suggests acceptable safety margins at intended use levels.
Regulatory Status
This ingredient is not on the FDA's Generally Recognized As Safe (GRAS) list. However, the absence of GRAS status does not indicate the substance is unsafe. Rather, it reflects that this particular compound has not undergone the formal GRAS notification process with the FDA.
Flavoring agents may be used in the United States under FDA regulations that allow for the use of substances that meet specified safety criteria, even without explicit GRAS status. The FDA maintains lists of acceptable flavoring substances under 21 CFR Part 182 and related regulations.
International regulatory acceptance varies by jurisdiction. Different countries may have distinct approvals and use levels for this flavoring compound based on their own safety assessment processes.
Key Studies
Published peer-reviewed research specifically focused on 6-methyl-3,5-heptadien-2-one is limited in readily available scientific literature. The compound's safety evaluation primarily relies on:
- Its structural classification as a naturally occurring ketone
- Absence of adverse event reports
- Established use history in food applications
- General toxicological data on structurally similar compounds
- Regulatory acceptance in food flavor databases
The flavor and extract manufacturers typically conduct proprietary safety assessments on flavoring ingredients as part of their quality assurance and regulatory compliance processes. These assessments inform the safe use levels established for commercial food applications.
Further research or safety data submissions may be available through the manufacturer or through regulatory agencies upon request. Those seeking detailed toxicological information are encouraged to contact relevant food safety authorities or the companies that produce or use this flavoring ingredient.