Description

(11β)-17-Dihydroxy-Pregna-3,5-Dien-20-One 21-(Acetyloxy)-3-Ethoxy-11 is a high-purity steroid derivative and a key synthetic intermediate in advanced pharmaceutical research and development. This compound matters for its role in the synthesis of complex steroid-based active pharmaceutical ingredients (APIs), where precise molecular structure is critical for biological activity. It is primarily needed by pharmaceutical manufacturers, R&D laboratories, and fine chemical synthesis specialists working on hormone therapies, anti-inflammatory agents, and other specialized medicinal compounds.

Application

• Pharmaceutical Intermediate: A critical building block in the multi-step synthesis of novel steroid-based therapeutic agents.
• Research & Development: Used in academic and industrial laboratories for pharmacological studies and the development of new drug candidates targeting hormone receptors.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in pharmaceutical analysis.
• Process Chemistry: Employed in scale-up and optimization of synthetic routes for complex steroid molecules in pilot plants and manufacturing.
• Biochemical Research: Utilized in studies investigating steroid metabolism, enzyme inhibition, and structure-activity relationships (SAR).

Basic Information

Product Name	(11β)-17-Dihydroxy-Pregna-3,5-Dien-20-One 21-(Acetyloxy)-3-Ethoxy-11
CAS No.	56736-68-6
Molecular Formula	C25H34O6
Molecular Weight	430.53 g/mol
Synonyms	11β,17-Dihydroxypregna-3,5-dien-20-one 21-acetate 3-ethyl ether; 3-Ethoxy-11β,17-dihydroxypregna-3,5-dien-20-one 21-acetate; 11β-Hydroxy-17-hydroxypregna-3,5-dien-20-one 21-acetate 3-ethyl ether; Pregna-3,5-dien-20-one, 11β,17-dihydroxy-, 21-acetate, 3-ethyl ether; Steroid intermediate 56736-68-6; 11β,17α-Dihydroxy-3-ethoxypregna-3,5-dien-20-one 21-acetate
EINECS	Contact for details

Quality Control

Our (11β)-17-Dihydroxy-Pregna-3,5-Dien-20-One 21-(Acetyloxy)-3-Ethoxy-11 is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical R&D and synthesis. Certificates of Analysis (COA) with full traceability are provided for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Specific Rotation	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.