Thioacetic Acid [507-09-5] | FEMA 4210

Registered with FEMA as 4210 and JECFA as 1676, Thioacetic Acid is approved for use as a flavoring agent in food applications, where it contributes distinctive savory, meaty, and roasted organoleptic notes to culinary formulations, seasonings, and savory flavor blends. JECFA has concluded that its use as a flavoring agent poses no safety concern at current intake levels, supporting its safe application in food systems when used in compliance with regulatory limits.

Beyond flavoring, Thioacetic Acid is a premier acetylthiolating and mercaptoalkylating agent in organic synthesis, valued for its ability to introduce acetylthiol groups into target molecules with high selectivity. This reactivity makes it indispensable for the production of pharmaceutical intermediates, including key building blocks for lipoic acid, cystine, and mercapto carboxylic acids—compounds critical to the synthesis of pharmaceuticals, such as certain antihypertensive agents and antimicrobial modifiers for cephalosporins. It also serves as a precursor for mercaptans via radical reactions with olefins, followed by hydrolysis, enabling the synthesis of specialty chemicals for polymer modification, agrochemicals, and fine chemical manufacturing.

Our Thioacetic Acid is manufactured to strict quality standards, typically available in 96% assay purity, with full compliance with JECFA specifications for flavor use and industrial-grade requirements for synthesis applications. It is supplied with comprehensive documentation, including certificates of analysis (COA) and safety data sheets (SDS), to ensure consistency, traceability, and adherence to global regulatory frameworks. Suitable for both laboratory-scale research and large-scale industrial production, this compound delivers reliable performance across pharmaceutical development, flavor formulation, and advanced organic synthesis.