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<h3>Overview</h3>
<p><strong>5-Chloroindole-3-carboxaldehyde</strong> (CAS 1014-89-7) is a specialized heterocyclic intermediate synthesized via Vilsmeier-Haack formylation of 5-chloroindole. Its molecular formula is C<sub>9</sub>H<sub>6</sub>ClNO. This compound serves as a critical building block in organic synthesis due to its reactive aldehyde group and halogenated aromatic core.</p>
<h3>Application</h3>
<ul>
<li>Synthesis of pharmaceutical APIs, particularly indole-based kinase inhibitors.</li>
<li>Production of fluorescent probes for biological imaging studies.</li>
<li>Development of agrochemical fungicides targeting specific pathogen pathways.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at 2-8°C to prevent oxidation. Personnel must wear chemical-resistant PPE; avoid inhalation of dust or vapor. Not intended for direct human consumption or clinical use without further formulation.</p>