*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>The <strong>Cephalosporin nucleus</strong> (7-aminocephalosporanic acid, 7-ACA) is the critical semisynthetic intermediate for producing broad-spectrum beta-lactam antibiotics. Manufactured via enzymatic hydrolysis of cephalosporin C, its molecular formula is <strong>C16H19N3O8S</strong> and CAS No. is <strong>5930-24-7</strong>.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical Manufacturing</strong>: Precursor for semi-synthetic drugs like ceftriaxone and ceftazidime.</li>
<li><strong>R&D Sector</strong>: Used in developing novel antibiotic variants with enhanced stability.</li>
<li><strong>Veterinary Medicine</strong>: Synthesis of animal-specific cephalosporin formulations.</li>
</ul>
<h3>Precautions</h3>
<p>Strict storage at <strong>-20°C</strong> in dry conditions is required to prevent degradation. Personnel must wear full PPE due to potential sensitization risks associated with beta-lactams.