Description

5-α-Dihydro Substance 'S' is a high-purity steroid intermediate of significant importance in pharmaceutical synthesis. This compound serves as a critical building block for the production of various active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and life sciences sectors for the development of therapeutic agents.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of steroidal drugs and hormones.
• Research & Development: Used in biochemical research for studying steroid metabolism and receptor activity.
• Fine Chemical Synthesis: Employed as a building block for creating complex organic molecules in laboratory settings.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in pharmaceutical analysis.

Basic Information

Product Name	5-α-Dihydro Substance 'S'
CAS No.	312-99-2
Molecular Formula	C21H30O2
Molecular Weight	314.46 g/mol
Synonyms	5α-Dihydro Substance S; 17-Hydroxy-5α-pregnane-3,11,20-trione; 5α-Pregnane-3,11,20-trione, 17-hydroxy-; 11-Deoxy-17-hydroxycorticosterone; Reichstein's Substance S; Dihydro Substance S; 17,21-Dihydroxypregnane-3,11,20-trione
EINECS	Contact for details

Quality Control

Our 5-α-Dihydro Substance 'S' is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets high-grade specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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