Description

2,3,5,5-Tetrakis(Trimethylsilyl)-1,3-Cyclopentadiene CAS NO 41991-87-1 is a highly functionalized cyclopentadiene derivative, characterized by its four trimethylsilyl (TMS) protecting groups. This compound is a valuable synthetic intermediate and ligand precursor, prized for its ability to impart steric bulk and modify electronic properties in advanced material synthesis. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty materials sectors for constructing complex molecular architectures.

Application

• Advanced Organic Synthesis: Serves as a key building block for the preparation of sterically hindered ligands and complex organic molecules.
• Organometallic Chemistry: Used as a precursor for the synthesis of novel metal complexes and catalysts in homogeneous catalysis.
• Pharmaceutical Intermediates: Employed in the research and development of active pharmaceutical ingredients (APIs) requiring tailored steric environments.
• Material Science: Acts as a monomer or modifier in the development of novel polymers and silicon-containing advanced materials.
• Agrochemical Research: Utilized in the synthesis of experimental compounds with potential biological activity.
• Academic & Industrial R&D: A critical reagent for methodological development and exploration of new chemical spaces in both university and corporate laboratories.

Basic Information

Product Name	2,3,5,5-Tetrakis(Trimethylsilyl)-1,3-Cyclopentadiene
CAS No.	41991-87-1
Molecular Formula	C17H38Si4
Molecular Weight	360.86 g/mol
Synonyms	1,3-Cyclopentadiene, 2,3,5,5-tetrakis(trimethylsilyl)-; Tetrakis(trimethylsilyl)cyclopentadiene; 2,3,5,5-Tetrakis(trimethylsilyl)cyclopenta-1,3-diene; TMS-CPD; 1,3-Cyclopentadiene, tetrakis(trimethylsilyl)-; 2,3,5,5-Tetrakis(trimethylsilyl)cyclopentadiene; 2,3,5,5-Tetrakis(trimethylsilyl)-1,3-cyclopentadiene
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch is characterized using advanced analytical techniques to confirm identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for parameters such as assay (by GC or NMR), identity (IR, NMR), and impurity profile are available upon request. We adhere to strict internal quality management protocols to support your research and development needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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