Used as a key intermediate in the synthesis of semi-synthetic cephalosporin antibiotics. It serves as a core building block for introducing various side chains at the 7-amino position, enabling the production of broad-spectrum antibiotics with enhanced stability, potency, and resistance to beta-lactamases. Its primary application lies in the pharmaceutical industry for developing antibiotics effective against both gram-positive and gram-negative bacteria. Due to its reactive amino group and preserved beta-lactam ring, it is ideal for chemical modifications that yield clinically important antimicrobial agents.