*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>Levofloxacin carboxylic acid</strong> is a key intermediate in the synthesis of levofloxacin, a broad-spectrum fluoroquinolone antibiotic. Produced via chiral resolution or asymmetric catalysis, it serves as a critical building block for pharmaceutical manufacturing. Its molecular formula is C<sub>18</sub>H<sub>20</sub>N<sub>2</sub>O<sub>4</sub> and CAS number is 115679-35-7.</p>
<h3>Application</h3>
<ul>
<li>Pharmaceutical synthesis: Precursor for high-purity levofloxacin API production.</li>
<li>Quality control: Reference standard for analytical method validation.</li>
<li>Research & Development: Used in metabolic stability studies of fluoroquinolones.</li>
</ul>
<h3>Precautions</h3>
<p>Store in a cool, dry place away from light to prevent degradation. Handle with appropriate PPE due to potential respiratory sensitization. Avoid direct exposure; strictly follow industrial hygiene protocols during processing.</p>