Description

3-(Trimethylsiloxy)-1,3,5,7,9-Estrapenten-17-One is a specialized organosilicon intermediate of significant interest in advanced organic synthesis. This compound matters for its unique chemical structure, which serves as a versatile building block for creating complex molecules with tailored properties. It is primarily needed by research and development chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials industries for synthesizing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel steroid analogs and other complex therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced crop protection chemicals and plant growth regulators.
• Advanced Material Precursor: Serves as a building block for silicon-containing polymers and specialty coatings with enhanced performance characteristics.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for constructing complex molecular frameworks via silyl protection and other key transformations.
• Fine Chemical Manufacturing: Utilized in the multi-step synthesis of high-value, low-volume specialty chemicals.

Basic Information

Product Name	3-(Trimethylsiloxy)-1,3,5,7,9-Estrapenten-17-One
CAS No.	69833-75-6
Molecular Formula	C24H36O2Si
Molecular Weight	384.63 g/mol
Synonyms	3-(Trimethylsilyloxy)-estra-1,3,5(10),7,9-pentaen-17-one; 3-Trimethylsiloxyestra-1,3,5(10),7,9-pentaen-17-one; 3-(Trimethylsiloxy)-1,3,5,7,9-estrapenten-17-one; 3-TMS-Estra-1,3,5(10),7,9-pentaen-17-one; 3-(Trimethylsilyloxy)estra-1,3,5(10),7,9-pentaen-17-one; 3-(Trimethylsiloxy)estra-1,3,5(10),7,9-pentaen-17-one; 3-(Trimethylsilyloxy)-1,3,5,7,9-estrapenten-17-one; 3-(Trimethylsiloxy)estra-1,3,5(10),7,9-pentaen-17-one (TMS derivative)
EINECS	Contact for details

Quality Control

Our 3-(Trimethylsiloxy)-1,3,5,7,9-Estrapenten-17-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and process development. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request 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 controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which may affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Loss on Drying	≤ 1.0%

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