Used as a key intermediate in the synthesis of cephalosporin antibiotics, particularly third-generation ones like ceftriaxone and cefotaxime. Its structure enables beta-lactam ring formation, enhancing antimicrobial activity against a broad spectrum of bacteria, including Gram-negative strains. The (Z)-isomer configuration is critical for optimal biological activity. It plays a vital role in improving the pharmacokinetics and stability of the final antibiotic products.