What is 2-(4-methyl-5-thiazolyl)ethyl Butanoate?
2-(4-methyl-5-thiazolyl)ethyl Butanoate (CAS Number: 94159-31-6) is a synthetic organic compound classified as a flavoring agent. It consists of a thiazole ring—a five-membered aromatic heterocycle containing sulfur and nitrogen—attached to a butanoate ester group. This structural combination creates a volatile compound with characteristic savory and meaty aromatic properties.
The thiazole moiety is notable because it occurs naturally in roasted foods and is commonly found in the flavor chemistry of cooked meat, nuts, and aged cheese. Synthetic versions like this compound are created to replicate or enhance these naturally occurring flavor profiles in food manufacturing.
Common Uses
This additive is employed as a flavoring agent in processed foods where savory, meaty, or umami-enhancing taste profiles are desired. Potential applications include:
- Meat-flavored seasonings and spice blends
- Ready-to-eat meal components
- Snack foods and savory chips
- Bouillon and broth products
- Processed meat alternatives
- Flavored condiments
As a flavoring agent, it is used in very small quantities—typically in the range of parts per million—to achieve the desired sensory effect without contributing substantially to the caloric or nutritional content of food products.
Safety Assessment
This additive has not been formally evaluated or approved by the FDA under the Generally Recognized as Safe (GRAS) status, indicating it has not undergone the agency's standard review process for safety affirmation. However, the absence of GRAS status does not automatically indicate a safety concern; rather, it reflects that formal evaluation has not been completed or requested.
According to FDA records, there have been zero reported adverse events associated with this compound and zero product recalls linked to its use. This lack of safety incidents suggests that if the compound is being used in food products, it has not generated observable consumer health complaints or regulatory action.
The compound's chemical structure—a stable ester with a thiazole ring—suggests reasonable metabolic stability and low bioaccumulation potential. Thiazole compounds are well-established in flavor chemistry, and many similar compounds have undergone toxicological review. However, specific toxicological data for this particular compound does not appear to be publicly available in major databases.
Regulatory Status
In the United States, this additive does not have FDA GRAS status, which means it cannot be used in food under the GRAS exemption. Any manufacturer wishing to use this compound would need to submit a Food Additive Petition (FAP) to the FDA or operate under a different regulatory authorization.
International regulatory status varies by jurisdiction. The European Food Safety Authority (EFSA) maintains separate approval processes for flavor substances, and this compound may have different approval status in EU markets compared to North America.
Manufacturers intending to use this flavoring would need to verify current regulatory compliance in their target markets, as flavor regulations vary significantly by country and region.
Key Studies
Publicly available peer-reviewed safety studies specifically evaluating 2-(4-methyl-5-thiazolyl)ethyl Butanoate appear limited in academic literature. Most information about this compound exists within proprietary flavor industry databases and manufacturer safety documentation.
The broader category of thiazole-containing flavor compounds has been studied for safety, with most research indicating these compounds are metabolized and excreted without significant bioaccumulation. The ester linkage suggests the compound would be subject to esterase hydrolysis during digestion.
Further toxicological characterization, including acute toxicity, subchronic studies, and genotoxicity assessment, would typically be required before formal regulatory approval in major markets.