Cortexolone 21-Acetate

Cortodoxon 21-acetate;17-Hydroxy-3,20-dioxopregn-4-en-21-yl acetate;
21-(Acetyloxy)-17-hydroxypregn-4-ene-3,20-dione;
11-Deoxycortisol 21-acetate

Chemical Structure Formula of Clascoterone Intermediate

CAS: 640-87-9

Chemical Formula: C23H32O5

Molecular Weight: 388.5

Availability: R&D; Commercialization

Chemical Structure Formula of Clascoterone Intermediate

Cortexolone 21-Acetate

⬤ CAS No.640-87-9

⬤ Our Packaging type:

20kg barrel;5kg barrel;1kg bag;500g bag ; Customized Packaging

Product Name
Cortexolone 21-Acetate
CAS No.640-87-9
Chemical FormulaC23H32O5
Molecular Weight388.5
Related CategoriesClascoterone Intermediate
Cortodoxone Intermediates
Melting Point 233–235 °C
Boiling Point 537.9 °C (at 760 mmHg; predicted)
Density 1.4 g/cm³
Flash Point 181.8 °C
Refractive Index 1.558
LogP 3.38
pKa 12.59 ± 0.60 (predicted)
Appearance/Form Crystalline solid (typical steroid form)
Color White to off-white
Solubility Sparingly soluble in chloroform; slightly soluble in methanol (when heated)
Storage Refrigerated (2–8 °C)
Mechanism of ActionCortexolone 21‑acetate (CAS 640‑87‑9) acts as a synthetic steroid intermediate and partial agonist of progesterone and glucocorticoid receptors, regulating gene transcription to exert anti‑inflammatory and mineralocorticoid‑modulating effects while serving as a key precursor for cortisone and hydrocortisone production.
ApplicationCortexolone 21‑acetate (CAS 640‑87‑9) is mainly used as a key pharmaceutical intermediate for synthesizing hydrocortisone, cortisone and other corticosteroid drugs.

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Michael Carter

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“Tianming Pharmaceutical has redefined reliability for us. Their ability to deliver high-potency APIs and intermediates under tight deadlines—is unmatched. The team’s transparency in documentation and proactive updates make them a stress-free partner. A true backbone for our operations!”

March 18, 2024

Dr. Sofia Alvarez

Outstanding Technical Guidance

“Few suppliers align so perfectly with EU GMP requirements. Tianming’s commitment to audit-ready quality systems, batch traceability, and purity consistency has streamlined our production processes. Their diligence eliminates regulatory risks—a rare advantage in today’s market.”

February 15, 2024

Rajesh Kapoor

Beyond Supplier, A Solutions Partner

“Tianming’s technical team doesn’t just deliver materials—they solve problems. When we faced stability challenges with a niche compound, their scientists proposed a tailored purity adjustment that saved our project timeline. Their agility transforms obstacles into opportunities.”

June 15, 2024

Emily Zhang

Strategic Growth Ally

“Over 5+ years, Tianming has consistently adapted to our evolving needs—whether scaling volumes or supporting custom synthesis projects. Their ethical pricing models and long-term vision make them more than a vendor; they’re integral to our competitive edge.”

 

April 27, 2024

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