Description

(25R)-Spirosta-1,4-Dien-3-One CAS NO 2137-22-6 is a high-purity steroidal sapogenin derivative, a key advanced intermediate in the synthesis of complex steroid-based pharmaceuticals. This compound is valued for its defined stereochemistry at the C-25 position, which is critical for directing subsequent synthetic transformations and ensuring the biological activity of final drug products. It is primarily utilized by research institutions and manufacturers in the pharmaceutical and biotechnology sectors for the development of novel therapeutic agents.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of steroidal drugs, including corticosteroids, hormones, and other bioactive molecules.
• Research & Development: Used in academic and industrial R&D for exploring new synthetic pathways and creating novel steroid analogs with potential therapeutic applications.
• Process Chemistry: Serves as a starting material or intermediate in scale-up and process optimization for commercial pharmaceutical manufacturing.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and impurity profiling of related steroid compounds.

Basic Information

Product Name	(25R)-Spirosta-1,4-Dien-3-One
CAS No.	2137-22-6
Molecular Formula	C27H38O3
Molecular Weight	410.59 g/mol
Synonyms	(25R)-Spirosta-1,4-dien-3-one; 25R-Spirosta-1,4-dien-3-one; (25R)-1,4-Spirostadien-3-one; Diosgenin derivative; 3-Oxo-(25R)-spirosta-1,4-diene; 1,4-Spirostadien-3-one, (25R)-; 2137-22-6; Spirosta-1,4-dien-3-one, (25R)-
EINECS	Contact for details

Quality Control

Our (25R)-Spirosta-1,4-Dien-3-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the stringent requirements for pharmaceutical intermediate use. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting purity, related substances, and other critical quality attributes.

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, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.