Description

Dichloromethylphenylsilane is a versatile organosilicon compound, also known as Methylphenyldichlorosilane, serving as a key intermediate in the synthesis of silicones and silane coupling agents. Its value lies in its bifunctional reactivity, where the two chlorine atoms enable further polymerization or modification, and the phenyl group contributes to thermal stability and organic compatibility in final products. This chemical is essential for manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, particularly for creating specialized silicone resins, hydrophobic coatings, and surface-modifying agents.

Application

• Silicone Resin & Polymer Synthesis: A fundamental monomer for producing phenyl-modified silicone oils, rubbers, and high-temperature resins.
• Silane Coupling Agent Precursor: Used to manufacture phenylalkoxysilanes, which improve adhesion between organic polymers and inorganic surfaces like glass or minerals.
• Hydrophobic Coating Formulations: Imparts water-repellent properties to surfaces in construction, automotive, and textile treatments.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of active pharmaceutical ingredients (APIs) and drug delivery systems.
• Agrochemical Synthesis: Used in creating silicon-containing pesticides and plant growth regulators.
• Electronic Materials: Employed in the production of dielectric layers, encapsulants, and other materials for microelectronics.
• Research & Development: A valuable reagent in organic and organometallic chemistry for introducing the methylphenylsilyl group.

Basic Information

Item	Details
Product Name	Dichloromethylphenylsilane
CAS No.	149-74-6
Molecular Formula	C7H8Cl2Si
Molecular Weight	191.13 g/mol
Synonyms	Methylphenyldichlorosilane; Phenyldichloromethylsilane; Dichloro(methyl)phenylsilane; Methylphenylsilyl dichloride; Phenylmethyldichlorosilane; (Dichloromethylsilyl)benzene; Silane, dichloromethylphenyl-; NSC 66466
EINECS	205-746-5

Quality Control

Our Dichloromethylphenylsilane is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including GC and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and incompatible materials. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density at 20°C	1.17 - 1.19 g/mL
Refractive Index (n20D)	1.518 - 1.522
Boiling Point	199 - 201 °C
Water Content (KF)	≤ 0.1%

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