*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>Metformin EP Impurity D</strong> is a critical reference standard used to monitor degradation pathways in biguanide pharmaceuticals. Synthesized via controlled condensation of 1,1-dimethylbiguanide with specific aldehydes, it serves as an impurity profile marker.</p>
<ul>
<li><strong>Molecular Formula:</strong> C<sub>7</sub>H<sub>16</sub>N<sub>4</sub>O<sub>2</sub></li>
<li><strong>CAS Number:</strong> 1098-00-8</li>
</ul>
<h3>Application</h3>
<ul>
<li>Quality control in API manufacturing for diabetes therapeutics.</li>
<li>Stability-indicating method development and validation.</li>
<li>Regulatory compliance testing under ICH Q3A guidelines.</li>
</ul>
<h3>Precautions</h3>
<p>Store below -20°C in sealed containers away from moisture. Handle only in certified laboratories using appropriate PPE to prevent inhalation or skin contact. Not intended for clinical administration.</p>