Description

(20S,25R)-5α-Spirostan-20-Ol CAS NO 24742-73-2 is a high-purity, specific stereoisomer of a spirostan derivative, a key structural motif in steroid chemistry. This compound is valued for its role as a critical intermediate in the synthesis of complex bioactive molecules, including pharmaceuticals and research chemicals. It is primarily sought by manufacturers and research institutions in the pharmaceutical, biotechnology, and fine chemical sectors for advanced synthetic applications.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of steroidal drugs and active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry for the discovery and development of new therapeutic agents targeting various biological pathways.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in laboratory settings.
• Biochemical Research: Employed in studies investigating steroid biosynthesis, receptor interactions, and metabolic processes.
• Fine Chemical Synthesis: A versatile chiral synthon for constructing complex natural products and specialty chemicals.

Basic Information

Product Name	(20S,25R)-5α-Spirostan-20-Ol
CAS No.	24742-73-2
Molecular Formula	C27H44O3
Molecular Weight	416.64 g/mol
Synonyms	(20S,25R)-5α-Spirostan-20-ol; (20S,25R)-5α-Spirostan-3β-ol; 5α-Spirostan-20-ol, (20S,25R)-; 20S,25R-Spirostan-5α-ol-20; Tigogenol (specific stereoisomer); Neotigogenol (related isomer); Spirostan-20-ol, 5α-, (20S,25R)-
EINECS	Contact for details

Quality Control

Our (20S,25R)-5α-Spirostan-20-Ol 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 pharmaceutical intermediates and research applications. 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 place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% (20S,25R)
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.