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<h3>Overview</h3>
<p><strong>1-Ethyl-4-[3-(3-ethyl-3H-benzothiazol-2-ylidene)prop-1-enyl]quinolinium iodide</strong>, commonly known as ETD, is a cyanine dye synthesized via condensation of quinoline and benzothiazole derivatives. Its molecular formula is C26H25IN2S with CAS No. 7089-78-3.</p>
<h3>Application</h3>
<ul>
<li>Fluorescence microscopy for nucleic acid staining in genomic research.</li>
<li>Flow cytometry for cell cycle analysis and apoptosis detection.</li>
<li>In vitro diagnostics for rapid pathogen identification assays.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C to prevent photodegradation. Handle with nitrile gloves; avoid direct skin contact due to potential mutagenicity. Not approved for human clinical use outside research protocols.</p>