Description

Disiloxane, 1,3-Bis(3-Chloropropyl)-1,1,3,3-Tetramethoxy- is a specialized organosilicon compound featuring a central disiloxane bridge flanked by chloropropyl and methoxy functional groups. This unique bifunctional structure makes it a valuable versatile building block and coupling agent in advanced material synthesis. It is primarily sought after by R&D and production teams in the silicone polymer, adhesive, and specialty coatings industries for creating materials with tailored properties.

Application

• Silicone Polymer Modification: Acts as a cross-linking agent or chain extender to introduce chloropropyl groups into silicone elastomers and resins, enhancing adhesion to substrates.
• Adhesive & Sealant Formulations: Serves as a key intermediate for synthesizing silane adhesion promoters, improving the bond strength of sealants and adhesives to various surfaces.
• Surface Treatment & Coatings: Used to prepare functionalized surfaces or as a precursor for coatings that require specific chemical resistance or surface energy properties.
• Pharmaceutical & Agrochemical Intermediates: Functions as a protected synthon in the multi-step synthesis of more complex molecules for active ingredient development.
• Hybrid Material Synthesis: Employed in sol-gel processes to create inorganic-organic hybrid materials (ORMOSILs) with customized mechanical and optical characteristics.
• Research & Development: A critical reagent in academic and industrial labs for exploring new organosilicon chemistry and developing novel polymeric architectures.

Basic Information

Product Name	Disiloxane, 1,3-Bis(3-Chloropropyl)-1,1,3,3-Tetramethoxy-
CAS No.	18132-73-5
Molecular Formula	C12H28Cl2O5Si2
Molecular Weight	379.42 g/mol
Synonyms	1,3-Bis(3-chloropropyl)-1,1,3,3-tetramethoxydisiloxane; 1,1,3,3-Tetramethoxy-1,3-bis(3-chloropropyl)disiloxane; Bis(3-chloropropyl)tetramethoxydisiloxane; 3-Chloropropyl Tetramethoxydisiloxane; Tetramethoxybis(3-chloropropyl)disiloxane; Disiloxane, tetramethoxybis(3-chloropropyl)-; (3-Chloropropyl)dimethoxysiloxane dimer
EINECS	Contact for details

Quality Control

Our production of Disiloxane, 1,3-Bis(3-Chloropropyl)-1,1,3,3-Tetramethoxy- adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). The product is sensitive to strong bases and should be kept away from such materials. Keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (at 20°C)	~1.08 g/cm³
Refractive Index (n20D)	~1.420 - 1.430
Chloropropyl Content	As per theoretical value

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