Description

5-Ethyl-A-Nor-5β-Cholestan-3-One is a high-purity, synthetic steroid derivative with a modified cholestane backbone, serving as a critical advanced intermediate in organic synthesis. Its precise molecular architecture makes it an invaluable building block for pharmaceutical research and the development of novel therapeutic agents. This compound is primarily utilized by research institutions and fine chemical manufacturers specializing in steroid chemistry, hormone analogs, and metabolic pathway studies.

Application

• Pharmaceutical Intermediate: Key synthon for the research and development of novel steroid-based drugs and hormone therapies.
• Biochemical Research: Used as a reference standard or probe in metabolic studies and enzyme interaction research.
• Organic Synthesis: Serves as a sophisticated building block for constructing complex steroidal molecules with specific biological activity.
• Academic & R&D: Employed in university and industrial laboratories for methodological development in synthetic organic chemistry.
• Fine Chemical Production: Intermediate in the multi-step synthesis of specialized fine chemicals and active pharmaceutical ingredients (APIs).

Basic Information

Product Name	5-Ethyl-A-Nor-5β-Cholestan-3-One
CAS No.	19682-33-8
Molecular Formula	C₂₉H₅₀O
Molecular Weight	414.71 g/mol
Synonyms	5-Ethyl-A-Nor-5β-Cholestan-3-One; 5β-Cholestan-3-one, 5-ethyl-A-nor-; 5-Ethyl-19-nor-5β-cholestan-3-one; 3-Cholestanone, 5-ethyl-A-nor-5β-; A-Nor-5β-cholestan-3-one, 5-ethyl-; 5-Ethyl-5β-A-norcholestan-3-one
EINECS	Contact for details

Quality Control

Our 5-Ethyl-A-Nor-5β-Cholestan-3-One is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity suitable for research and synthesis. Each lot is characterized using advanced analytical techniques including HPLC, GC-MS, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance processes.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.