Description

3-(Trimethylsiloxy)-1,3,5,7,9-Estrapenten-17-One o-Methyl Oxime is a specialized organosilicon derivative of a steroidal oxime, identified by CAS No. 69833-43-8. This compound is valued for its role as a key synthetic intermediate, offering a protected functional group that enables precise chemical transformations in complex molecule assembly. It is primarily required by research institutions and pharmaceutical development laboratories engaged in the synthesis of novel steroid analogs and other bioactive molecules.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the multi-step synthesis of steroidal drugs and hormone analogs.
• Organic Synthesis Research: Used in academic and industrial R&D for exploring new reaction pathways involving silyl-protected ketoxime functionalities.
• Process Chemistry Development: Employed in the scale-up and optimization of synthetic routes for complex organic molecules in pilot plants.
• Reference Standard: Utilized as an analytical standard in quality control laboratories for method development and impurity profiling.
• Material Science Precursor: Investigated for the development of novel silicon-containing hybrid materials with specific surface properties.

Basic Information

Product Name	3-(Trimethylsiloxy)-1,3,5,7,9-Estrapenten-17-One o-Methyl Oxime
CAS No.	69833-43-8
Molecular Formula	C25H41NO2Si
Molecular Weight	415.69 g/mol
Synonyms	3-(Trimethylsilyloxy)estra-1,3,5(10),7,9-pentaen-17-one O-methyloxime; 3-Trimethylsiloxy-1,3,5,7,9-estrapenten-17-one O-methyloxime; Estrone 3-(trimethylsilyl) ether O-methyloxime; 3-TMS-Estrone Methyloxime; 69833-43-8; 3-(Trimethylsiloxy)estra-1,3,5(10),7,9-pentaen-17-one O-methyloxime; 3-(Trimethylsilyloxy)-1,3,5,7,9-estrapenten-17-one O-methyloxime
EINECS	Contact for details

Quality Control

Our 3-(Trimethylsiloxy)-1,3,5,7,9-Estrapenten-17-One o-Methyl Oxime is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are 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 place at a controlled room temperature (typically 15-25°C). This compound is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere for prolonged stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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