*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Ambroxol Cyclic Impurity Hydrochloride is a critical reference standard for the quality control of <strong>Ambroxol Hydrochloride</strong>. Synthesized via specific cyclization pathways during API manufacturing, it serves to identify and quantify trace impurities. Its molecular formula is <strong>C13H18BrNO2·HCl</strong>, with CAS number <strong>145667-09-4</strong>.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical QC:</strong> Used as an analytical standard in HPLC methods to detect cyclic byproducts.</li>
<li><strong>R&D Validation:</strong> Supports method development for stability-indicating assays.</li>
<li><strong>Regulatory Compliance:</strong> Essential for documenting impurity profiles in IND and NDA submissions.</li>
</ul>
<h3>Precautions</h3>
<ul>
<li><strong>Storage:</strong> Keep sealed under inert atmosphere at 2–8°C away from light.</li>
<li><strong>Safety:</strong> Handle with PPE; avoid inhalation or skin contact due to potential irritancy.</li>
<li><strong>Usage:</strong> Strictly for laboratory research; not for clinical administration.</li>
</ul>