Description

21-Nor-5α-Cholest-24-En-20-One is a high-purity steroidal intermediate of significant importance in advanced organic synthesis. This compound serves as a critical building block for the development of novel pharmaceutical agents and bioactive molecules. It is primarily utilized by research institutions and pharmaceutical manufacturers engaged in steroid chemistry, drug discovery, and the synthesis of complex natural product derivatives.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel steroid-based therapeutics and active pharmaceutical ingredients (APIs).
• Research & Development: Used in academic and industrial R&D for studying steroid metabolism, receptor interactions, and structure-activity relationships (SAR).
• Reference Standard: Serves as an analytical standard for quality control and method development in pharmaceutical laboratories.
• Biochemical Synthesis: Employed in the synthesis of specialized biochemical tools and probes for biological studies.
• Fine Chemical Production: Utilized as a building block in the multi-step synthesis of complex, high-value fine chemicals.

Basic Information

Product Name	21-Nor-5α-Cholest-24-En-20-One
CAS No.	14949-18-9
Molecular Formula	C₂₆H₄₂O
Molecular Weight	370.62 g/mol
Synonyms	21-Norcholest-24-en-20-one; 20-Oxo-21-nor-5α-cholest-24-ene; 5α-Cholest-24-ene-20-one, 21-nor-; (20R)-20-Oxo-21-nor-5α-cholest-24-ene; 21-Nor-5α-cholest-24-en-20-one; 21-Nor-5α-cholest-24-ene-20-one; 21-Nor-5α-cholest-24-en-20-on; 21-Nor-5-α-cholest-24-en-20-one
EINECS	Contact for details

Quality Control

Our 21-Nor-5α-Cholest-24-En-20-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the stringent requirements for research and pharmaceutical intermediate use. A Certificate of Analysis (COA) detailing all specifications is provided with every 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 the container tightly sealed to protect from moisture and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.