*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>2,3-Difluoro-4-methoxybenzaldehyde</strong> is a key fluorinated intermediate for pharmaceutical synthesis. Molecular formula: <strong>C8H6F2O2</strong>; CAS No.: <strong>139507-55-2</strong>. Core production involves Vilsmeier-Haack formylation of 2,3-difluoroanisole.</p>
<h3>Application</h3>
<ul>
<li>Synthesis of fluorinated kinase inhibitors for oncology drugs.</li>
<li>Intermediate for novel antiviral agents targeting viral proteases.</li>
<li>Building block for specialty agrochemical fungicides.</li>
</ul>
<h3>Precautions</h3>
<p>Store in sealed containers under inert atmosphere at -20°C. Use appropriate PPE to prevent skin contact and inhalation due to potential respiratory irritation.</p>