Description

[(8R,9S,10R,13S,14S,17S)-3-Chloro-10,13-Dimethyl-2,7,8,9,11,12,14,15,16,17-Decahydro-1H-Cyclopenta[A]Phenanthren-17-Yl] Acetate is a high-purity, steroidal chemical intermediate of significant interest in advanced organic synthesis. This compound matters for its role as a key building block in the research and development of novel pharmaceutical agents, particularly those targeting hormonal pathways. It is primarily needed by R&D laboratories and production facilities in the pharmaceutical, biotechnology, and fine chemical sectors seeking reliable, high-quality intermediates for complex synthesis.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of steroidal drugs and active pharmaceutical ingredients (APIs).
• Research & Development: Used in academic and industrial laboratories for exploring new chemical entities and reaction pathways in medicinal chemistry.
• Biochemical Research: Employed in studies investigating steroid hormone receptors and related biological mechanisms.
• Fine Chemical Synthesis: Acts as a specialized building block for creating complex, high-value organic molecules with specific stereochemistry.

Basic Information

Product Name	[(8R,9S,10R,13S,14S,17S)-3-Chloro-10,13-Dimethyl-2,7,8,9,11,12,14,15,16,17-Decahydro-1H-Cyclopenta[A]Phenanthren-17-Yl] Acetate
CAS No.	903-28-6
Molecular Formula	C21H29ClO2
Molecular Weight	348.91 g/mol
Synonyms	3-Chloroandrost-5-en-17β-ol acetate; 3-Chloro-17β-acetoxyandrost-5-ene; 3-Chloroandrost-5-en-17β-yl acetate; 17β-Acetoxy-3-chloroandrost-5-ene; 3-Chloro-5-androsten-17β-ol acetate; Androst-5-en-17β-ol, 3-chloro-, acetate; (3β,17β)-3-Chloroandrost-5-en-17-yl acetate
EINECS	Contact for details

Quality Control

Our [(8R,9S,10R,13S,14S,17S)-3-Chloro-10,13-Dimethyl-2,7,8,9,11,12,14,15,16,17-Decahydro-1H-Cyclopenta[A]Phenanthren-17-Yl] Acetate is manufactured under strict quality management systems. All products undergo rigorous analytical testing to ensure high purity and batch-to-batch consistency, meeting the stringent requirements for pharmaceutical intermediates. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider inert atmosphere conditions to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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