*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>Progesterone EP Impurity B</strong> (CAS 145-06-2) is a critical reference standard used in pharmaceutical quality control to ensure the purity of progesterone APIs. It serves as an identified degradation product or synthetic by-product, characterized by its specific molecular structure <strong>C<sub>21</sub>H<sub>30</sub>O<sub>3</sub></strong>. This compound is typically manufactured via controlled oxidation or side-reaction pathways during steroid synthesis.</p>
<h3>Application</h3>
<ul>
<li>Validation of analytical methods for HPLC and GC systems.</li>
<li>Establishment of acceptance criteria in ICH Q3 guidelines.</li>
<li>Stability-indicating studies for drug formulation development.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C to prevent degradation. Handle only in certified laboratories with appropriate PPE due to potential hormonal activity and skin absorption risks. Strictly prohibited for direct clinical administration.</p>