food grade, pharmaceutical grade, injection grade, veterinary use
Is Manufacturer
YES
Product Description
Standard or custom package
excellent quality and reliable supplier
AI Product Description
*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Levonorgestrel is a synthetic <strong>progestin</strong> derived from 19-nortestosterone, widely utilized in pharmaceutical synthesis. The standard molecular formula is <strong>C<sub>21</sub>H<sub>28</sub>O<sub>2</sub></strong>, with CAS registry number <strong>797-63-7</strong>. Industrial production typically involves semi-synthesis starting from diosgenin or soybean sterol.</p>
<h3>Application</h3>
<ul>
<li><strong>Contraceptives:</strong> Primary ingredient in emergency contraception pills and long-acting hormonal implants.</li>
<li><strong>Hormone Therapy:</strong> Used in combined oral contraceptives to regulate menstrual cycles.</li>
<li><strong>Gynecology:</strong> Treatment of heavy menstrual bleeding and endometriosis management.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly contraindicated for patients with history of thromboembolic disorders or undiagnosed vaginal bleeding. Storage requires maintaining temperature below 25°C in a dry, light-resistant environment to ensure chemical stability.</p>