Description

2-(4-Chlorosulphonylphenyl)Ethyltrimethoxysilane50% In Methylene Chloride is a specialized organosilane coupling agent supplied as a 50% solution in methylene chloride for enhanced handling and application. This compound is engineered to provide a dual-functional bridge between inorganic substrates and organic polymers, featuring both a reactive chlorosulfonyl group and hydrolyzable trimethoxysilane groups. It is a critical intermediate for manufacturers in the advanced materials, coatings, and specialty chemical sectors seeking to improve adhesion, durability, and surface properties.

Application

• Surface Modification Agent: Used to functionalize glass, silica, metals, and other inorganic surfaces to improve adhesion for coatings, paints, and adhesives.
• Polymer & Composite Manufacturing: Acts as a coupling agent in fiber-reinforced plastics (FRP) and mineral-filled composites to enhance interfacial bonding and mechanical properties.
• Specialty Silicone Synthesis: Serves as a key monomer or intermediate for synthesizing custom polysiloxanes with specific sulfonyl chloride functionality.
• Chromatography Media: Employed in the derivatization of stationary phases for HPLC columns to achieve specific separation selectivities.
• Waterproofing & Protective Coatings: Formulated into coatings for construction materials, textiles, and electronics to impart water repellency and corrosion resistance.
• Adhesion Promoter in Sealants: Enhances the bond strength and longevity of high-performance sealants and elastomers on challenging substrates.

Basic Information

Product Name	2-(4-Chlorosulphonylphenyl)Ethyltrimethoxysilane50% In Methylene Chloride
CAS No.	126519-89-9
Molecular Formula	C11H17ClO5SSi (Silane component)
Molecular Weight	324.86 g/mol (Silane component)
Synonyms	2-(4-Chlorosulfonylphenyl)ethyltrimethoxysilane; (3-(4-Chlorosulfonylphenyl)propyl)trimethoxysilane; 4-(2-Trimethoxysilylethyl)benzenesulfonyl chloride; Silane coupling agent SCA-CS; Chlorosulfonylphenethyltrimethoxysilane; 126519-89-9; p-Chlorosulfonylphenethyltrimethoxysilane
EINECS	Contact for details

Quality Control

Our production of 2-(4-Chlorosulphonylphenyl)Ethyltrimethoxysilane50% In Methylene Chloride adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including assay, identity confirmation, and solvent content verification, to ensure consistency and reliability. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to the highly volatile and flammable nature of the methylene chloride solvent, keep away from open flames and sparks. The recommended storage temperature is 15-25°C. Keep container tightly sealed when not in use to prevent evaporation and moisture ingress.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow solution
Identification (IR)	Conforms to structure
Assay (Silane, by GC or HPLC)	48.0 - 52.0 % (w/w)
Purity (Silane, area% by GC)	≥ 95.0 %
Solvent (Methylene Chloride)	Balance
Water Content (KF)	≤ 0.2 %

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