Description

1-[(25R)-5α-Spirostan-20-Yl]Ethanone is a high-purity steroidal ketone derivative, serving as a critical advanced intermediate in the synthesis of complex bioactive molecules. Its defined stereochemistry at the C-25 position makes it a valuable building block for pharmaceutical research and development. This compound is primarily utilized by research institutions and fine chemical manufacturers specializing in steroid chemistry, hormone analogs, and novel therapeutic agents.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of steroidal drugs and hormone-based therapies.
• Chemical Reference Standard: Used as a high-purity analytical standard for quality control and method validation in analytical laboratories.
• Organic Synthesis Building Block: Employed in the synthesis of more complex spirostan derivatives and other specialized organic compounds.
• Biochemical Research: Utilized in studies investigating steroid receptor interactions, metabolic pathways, and enzyme inhibition.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals for advanced material science applications.

Basic Information

Product Name	1-[(25R)-5α-Spirostan-20-Yl]Ethanone
CAS No.	56282-34-9
Molecular Formula	C₂₉H₄₆O₃
Molecular Weight	442.68 g/mol
Synonyms	1-[(25R)-5α-Spirostan-20-yl]ethan-1-one; 20-Acetyl-25R-spirostan; (25R)-20-Acetyl-5α-spirostan-3β-ol; 3β-Hydroxy-5α-spirostan-20-one acetate; 25R-Spirostan-20-yl methyl ketone; 20-Keto-25R-spirostanyl acetate; 5α-Spirostan-20-one, 3β-hydroxy-, acetate (25R)-
EINECS	Contact for details

Quality Control

Our 1-[(25R)-5α-Spirostan-20-Yl]Ethanone is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and chiral analysis to confirm stereochemical integrity, ensuring it meets the stringent requirements for research and synthesis. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Chiral Purity	≥ 99.0% (25R)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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