Used as an intermediate in the synthesis of cephalosporin antibiotics, particularly in the production of third-generation cephalosporins such as cefotaxime and ceftriaxone, and related beta-lactam antimicrobial agents. Its structure supports the formation of the thiazole ring system critical for antibiotic activity. Commonly employed in pharmaceutical manufacturing to build the side chain of injectable and oral cephalosporins. Also utilized in research for developing new semi-synthetic antibiotics with improved stability and efficacy against resistant bacterial strains.