What is Alcohol, Denatured Formula 23a?
Alcohol, Denatured Formula 23a is a specialized industrial ethanol product designated by CAS Number 977021-64-9. Denatured alcohol is ethanol that has been chemically treated with additives to make it unsuitable for drinking while preserving its utility as a solvent and processing agent. Formula 23a refers to a specific denaturing formula regulated under U.S. federal guidelines. The denaturing agents typically include bittering compounds and other substances that discourage human consumption while maintaining the solvent properties needed for food processing applications.
Common Uses
As a processing aid, Alcohol, Denatured Formula 23a is used in food manufacturing for extraction, purification, and manufacturing processes. Its primary function is technical rather than nutritional—it facilitates the production of certain food ingredients and products but is removed or processed out before the food reaches consumers. Common applications include extraction of flavoring compounds, solvent use in food ingredient preparation, and cleaning of food manufacturing equipment. Processing aids typically do not appear in the final food product in significant quantities, as they are removed during subsequent processing steps or dissipate during cooking or manufacturing.
Safety Assessment
Alcohol, Denatured Formula 23a has not been designated as Generally Recognized As Safe (GRAS) by the FDA, which means it has not undergone the formal GRAS notification process for food use. However, the FDA database contains zero reported adverse events and zero product recalls associated with this substance. The lack of adverse event reports suggests that any exposure through food products has not resulted in identified safety concerns. The denaturing agents added to create this formula are themselves food-grade substances designed to prevent accidental ingestion while allowing industrial use. Because processing aids are by definition removed from final food products, dietary exposure is minimal or nonexistent. The safety profile of denatured ethanol is generally well-established, as ethanol itself is widely used in food and beverages, and the denaturing agents are approved for their intended use.
Regulatory Status
Alcohol, Denatured Formula 23a operates under FDA food processing regulations as a processing aid rather than as a food additive with a permanent or temporary tolerance. The FDA distinguishes processing aids from food additives because they are not intended to be components of finished food. The specific denaturing formula (23a) is defined and regulated under Title 27 of the Code of Federal Regulations, which governs denatured alcohol under the Department of Treasury Alcohol and Tobacco Tax and Trade Bureau. Manufacturers using this substance must comply with regulations ensuring it does not remain in finished food products in more than trace amounts. The lack of FDA GRAS status does not necessarily indicate safety concerns but rather that the formal GRAS notification pathway was not pursued for this specific application.
Key Studies
Limited peer-reviewed literature specifically addresses Alcohol, Denatured Formula 23a due to its specialized industrial role and minimal consumer exposure. The safety assessment of this substance relies primarily on the known toxicology of ethanol and the established safety profiles of approved denaturing agents. General literature on denatured alcohol use in pharmaceutical and industrial food processing confirms that properly formulated denatured alcohol with standard denaturing agents poses minimal food safety risk when used as intended in processing applications. Regulatory agencies including the FDA and EFSA have established frameworks for evaluating processing aids based on the principle that substances removed during processing present negligible dietary risk. The zero adverse event reports in FDA databases over the product's history of use supports the established safety record of properly controlled denatured alcohol in food manufacturing contexts.