Description

1,3-Bis(Chloromethyl)-1,1,3,3-Tetrakis(Trimethylsiloxy)Disiloxane CAS NO 17909-34-1 is a specialized organosilicon compound featuring a unique disiloxane backbone functionalized with chloromethyl and trimethylsiloxy groups. This bifunctional structure makes it a valuable high-purity intermediate for synthesizing advanced silicone polymers and hybrid materials. It is essential for manufacturers in the pharmaceutical, electronics, and specialty coatings industries seeking to incorporate specific reactive sites into their silicone-based products.

Application

• Silicone Crosslinking Agent: Used as a reactive intermediate in the synthesis of cross-linked silicone resins and elastomers for high-performance applications.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug delivery systems that require organosilicon components.
• Surface Modification: Employed to functionalize silica surfaces and other inorganic materials to alter their hydrophobicity, adhesion, or compatibility with organic matrices.
• Precursor for Hybrid Materials: Acts as a precursor in sol-gel processes to create organic-inorganic hybrid (OIH) materials with tailored properties for optics and electronics.
• Adhesive & Sealant Formulations: Incorporated into specialty silicone adhesive and sealant formulations to enhance curing characteristics and final material properties.
• Electronic Encapsulants: Used in the production of silicone-based encapsulants and potting compounds for protecting sensitive electronic components.

Basic Information

Product Name	1,3-Bis(Chloromethyl)-1,1,3,3-Tetrakis(Trimethylsiloxy)Disiloxane
CAS No.	17909-34-1
Molecular Formula	C14H40Cl2O5Si6
Molecular Weight	563.86 g/mol
Synonyms	1,3-Bis(chloromethyl)-1,1,3,3-tetrakis(trimethylsiloxy)disiloxane; 1,3-Bis(chloromethyl)tetrakis(trimethylsiloxy)disiloxane; Disiloxane, 1,3-bis(chloromethyl)-1,1,3,3-tetrakis(trimethylsiloxy)-; Tetrakis(trimethylsiloxy)-1,3-bis(chloromethyl)disiloxane; 1,3-Di(chloromethyl)-1,1,3,3-tetrakis-O-(trimethylsilyl)disiloxane
EINECS	Contact for details

Quality Control

Our 1,3-Bis(Chloromethyl)-1,1,3,3-Tetrakis(Trimethylsiloxy)Disiloxane is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including NMR, GC, and HPLC, to ensure high purity and consistent performance as a critical synthetic intermediate. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound is sensitive to strong acids and moisture; keep the container tightly sealed under an inert atmosphere such as 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
Purity (GC)	≥ 95.0%
Chlorine Content	12.0 - 13.0 %
Water Content (KF)	≤ 0.1 %

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