Description

Phenylmethyl Chloroethoxysilane is a versatile organosilicon compound, specifically a chlorosilane derivative, that serves as a critical intermediate in the synthesis of advanced silicone polymers and surface-modifying agents. Its molecular structure, featuring both phenyl and chloroethoxy functional groups, provides unique reactivity and compatibility, making it essential for creating materials with tailored hydrophobic, adhesive, and release properties. This product is primarily utilized by manufacturers in the silicone rubber, sealant, adhesive, and specialty coatings industries seeking to enhance product performance and durability.

Application

• As a key monomer or cross-linking agent in the production of high-performance silicone resins and elastomers.
• As a surface treatment agent for inorganic fillers (e.g., silica, glass fibers) to improve dispersion and compatibility in polymer matrices.
• In the formulation of moisture-curable sealants and adhesives, where it acts as a cross-linker and adhesion promoter.
• For the synthesis of specialized silane coupling agents used in composite materials and reinforced plastics.
• As an intermediate in the manufacture of release coatings for pressure-sensitive labels and tapes.
• In the production of hydrophobic coatings for construction materials and electronic components.
• For research and development of novel organosilicon compounds in pharmaceutical and agrochemical synthesis.

Basic Information

Product Name	Phenylmethyl Chloroethoxysilane
CAS No.	17881-37-7
Molecular Formula	C9H13ClO2Si
Molecular Weight	216.73 g/mol
Synonyms	Chloro(phenyl)methyldiethoxysilane; (Chloromethyl)phenyldiethoxysilane; Phenyldiethoxychloromethylsilane; Phenyl (chloromethyl)diethoxysilane; Diethoxy(chloromethyl)phenylsilane; 1-Chloro-1-phenyl-2,2-diethoxy-1-silaethane; Silane, chloromethylphenyldiethoxy-; (Chloromethyl)phenyldiethyloxysilane
EINECS	241-864-1

Quality Control

Our Phenylmethyl Chloroethoxysilane is manufactured under stringent quality control protocols to ensure batch-to-batch consistency and high purity. Production adheres to a comprehensive quality management system. Each batch is analyzed against rigorous internal specifications, with key parameters including purity, identity, and impurity profile verified via modern analytical techniques. Certificates of Analysis (COA) documenting these results are provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	1.05 - 1.10 g/cm³
Refractive Index (n20D)	1.470 - 1.480
Chloride Content	15.5 - 17.0 %
Water Content (KF)	≤ 0.2 %

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