Description

1,1,2,2,9,9,10,10-Octamethyl-1,2,9,10-Tetrasila(2.2)Paracyclophane is a high-purity, organosilicon cyclic compound featuring a unique paracyclophane structure with four silicon atoms. This compound matters as a sophisticated precursor or intermediate in advanced material synthesis, offering precise structural control for creating specialized silicon-based polymers and coatings. It is primarily needed by R&D and production teams in the semiconductor, photoresist, and specialty polymer industries for developing next-generation electronic and optical materials.

Application

• Advanced Photoresist & Semiconductor Materials: Acts as a key monomer or additive in the formulation of silicon-containing photoresists for extreme ultraviolet (EUV) and deep ultraviolet (DUV) lithography processes.
• Silicon-Containing Polymer Synthesis: Serves as a building block for synthesizing novel polysilanes, polycarbosilanes, or silicon-based dendrimers with tailored thermal and optical properties.
• Chemical Vapor Deposition (CVD) & Atomic Layer Deposition (ALD): Used as a volatile precursor for depositing thin films of silicon carbide (SiC) or silicon-carbon alloys on semiconductor wafers.
• Optical & Electronic Materials: Incorporated into organic light-emitting diodes (OLEDs) or other optoelectronic devices to modify charge transport or refractive index.
• Surface Modification & Adhesion Promotion: Utilized to create functionalized surfaces with specific silane groups to enhance adhesion between organic and inorganic layers.
• Academic & Industrial Research: Employed in fundamental studies of strained ring systems, novel organometallic chemistry, and the development of new material platforms.

Basic Information

Product Name	1,1,2,2,9,9,10,10-Octamethyl-1,2,9,10-Tetrasila(2.2)Paracyclophane
CAS No.	109828-61-7
Molecular Formula	C20H36Si4
Molecular Weight	388.86 g/mol
Synonyms	Octamethyltetrasila[2.2]paracyclophane; 1,2,9,10-Tetrasila[2.2]paracyclophane, 1,1,2,2,9,9,10,10-octamethyl-; Tetrasila[2.2]paracyclophane, octamethyl-; [2.2]Paracyclophane, 1,1,2,2,9,9,10,10-octamethyl-1,2,9,10-tetrasila-; Cyclic tetrasilane derivative; Si4-Paracyclophane; Organosilicon cyclic tetramer
EINECS	Contact for details

Quality Control

Our production of 1,1,2,2,9,9,10,10-Octamethyl-1,2,9,10-Tetrasila(2.2)Paracyclophane adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity, critical for sensitive electronic and photoresist applications. Each lot undergoes comprehensive analysis including HPLC, NMR (1H, 13C, 29Si), and GC-MS to confirm identity, purity, and the absence of critical metallic impurities. A detailed Certificate of Analysis (COA) documenting all test results is provided with every shipment.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (argon or nitrogen) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Melting Point	Contact for details
Heavy Metals (as Pb)	< 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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