Description

3,17β-Bis(Trimethylsiloxy)-5β-Androst-3-Ene is a key steroidal intermediate featuring trimethylsilyl (TMS) protecting groups, which enhance its stability and solubility for advanced synthetic processes. This compound is critical for researchers and manufacturers requiring high-purity building blocks for the synthesis of complex pharmaceutical and bioactive molecules. It is primarily utilized in the development of steroid-based APIs, hormone analogs, and other fine chemicals within the pharmaceutical and life sciences sectors.

Application

• Pharmaceutical Intermediate: A crucial building block in the multi-step synthesis of steroidal active pharmaceutical ingredients (APIs) and hormone derivatives.
• Research & Development: Used in academic and industrial R&D for exploring new synthetic pathways and creating novel steroid-based compounds.
• Fine Chemical Synthesis: Serves as a protected intermediate in the production of high-value, complex fine chemicals and specialty materials.
• Reference Standard: Can be utilized as a chromatographic or spectroscopic reference standard for quality control and analytical method development.

Basic Information

Product Name	3,17β-Bis(Trimethylsiloxy)-5β-Androst-3-Ene
CAS No.	69833-82-5
Molecular Formula	C25H46O2Si2
Molecular Weight	434.81 g/mol
Synonyms	5β-Androst-3-ene-3,17β-diol bis(trimethylsilyl) ether; 3,17β-Bis-O-(trimethylsilyl)-5β-androst-3-ene; 5β-Androst-3-ene-3,17β-diol 3,17-bis(trimethylsilyl) ether; Androst-5β-ene-3,17β-diol bis(trimethylsilyl) ether; 69833-82-5; 3,17β-Bis(trimethylsiloxy)-5β-androst-3-ene
EINECS	Contact for details

Quality Control

Our 3,17β-Bis(Trimethylsiloxy)-5β-Androst-3-Ene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability.

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%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%

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