What is 2,4-dimethyl-4-nonanol?
2,4-dimethyl-4-nonanol (CAS Number: 74356-31-3) is a synthetic organic compound belonging to the class of aliphatic alcohols. It is characterized by a nine-carbon backbone with methyl substitutions at the 2 and 4 positions and a hydroxyl group at the 4 position. This structural configuration contributes to its organoleptic properties, making it valuable in the flavor and fragrance industry.
Common Uses
As a flavoring agent, 2,4-dimethyl-4-nonanol is employed in the formulation of food and beverage products to provide fruity, woody, and slightly floral taste and aroma characteristics. It is typically used in very small concentrations, as is standard for synthetic flavoring compounds. Common applications include:
- Beverages (alcoholic and non-alcoholic)
- Confectionery and candy products
- Baked goods
- Dairy products
- Flavor compositions and blends
The compound functions as both a flavoring agent and adjuvant, meaning it can enhance or modify the sensory profile of other flavor components in a formulation.
Safety Assessment
Currently, 2,4-dimethyl-4-nonanol does not hold Generally Recognized As Safe (GRAS) status from the FDA. This designation does not indicate that the compound is unsafe; rather, it means that a formal GRAS determination has not been established through the FDA's petition process. Many flavoring compounds operate without GRAS status while still being permitted for use under the FDA's flavor regulations (21 CFR Part 182).
The FDA's Adverse Event Reporting System (FAERS) contains zero reported adverse events associated with this additive, and no product recalls involving this compound have been documented in FDA records. This absence of reported safety incidents suggests that if the compound is in use, it has not been associated with consumer harm at typical exposure levels.
The compound's molecular structure and chemical properties are consistent with other synthetic flavoring alcohols that have extensive histories of safe use in food applications. However, the limited publicly available toxicological data means safety conclusions should be considered preliminary pending any comprehensive studies.
Regulatory Status
In the United States, 2,4-dimethyl-4-nonanol may be used as a flavoring substance under FDA regulations governing synthetic flavoring agents. The specific regulatory pathway and any use limitations would depend on the compound's classification within the FDA's flavor inventory system.
In the European Union, synthetic flavoring compounds are regulated under Regulation (EC) No 1334/2008. The EFSA (European Food Safety Authority) maintains a list of approved flavoring substances; however, detailed information about this specific compound's EU status would require consultation of current regulatory databases, as these are regularly updated.
Manufacturers using this flavoring must comply with labeling requirements and limitations on maximum use levels established by relevant food safety authorities.
Key Studies
Publicly available peer-reviewed literature specifically examining the safety profile of 2,4-dimethyl-4-nonanol appears limited. Most data regarding this compound would typically exist within proprietary safety dossiers submitted to regulatory authorities during flavor approval processes.
Like other synthetic flavoring agents, safety assessment generally relies on:
- Structural similarity to known safe compounds
- Acute and subchronic toxicity studies
- Metabolism and kinetics data
- Intended use levels and typical dietary exposure estimates
Anyone seeking detailed safety information should consult the manufacturer's technical documentation or regulatory submissions, or contact the FDA's Flavors and Cosmetics Program for specific guidance on this compound's regulatory history and approved use conditions.