Description

3-Phenoxypropyldimethylchlorosilane is a versatile organosilicon reagent featuring a reactive chlorosilane group and a phenoxypropyl moiety. This compound is a critical intermediate for introducing silyl ether linkages and modifying surface properties in advanced materials. It is primarily sought by manufacturers in the silicone polymer, pharmaceutical, and specialty chemical industries for applications requiring precise functionalization and controlled hydrophobicity.

Application

• Silicone Polymer Modification: Acts as a key monomer or chain extender for synthesizing specialty silicones with phenoxy-functional side chains, imparting specific solubility and compatibility properties.
• Surface Derivatization Agent: Used to functionalize silica, glass, and other oxide surfaces to create hydrophobic or specifically reactive coatings for chromatography, sensors, and composite materials.
• Pharmaceutical Intermediate: Serves as a protecting group reagent or a synthetic building block in the production of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Adhesive & Sealant Formulations: Incorporated as an adhesion promoter or cross-linking agent in high-performance silicone-based adhesives and sealants.
• Liquid Crystal & OLED Materials: Utilized in the synthesis of organosilicon compounds for electronic display and lighting applications.
• Research & Development: A valuable tool in organic and materials chemistry research for constructing novel molecular architectures.

Basic Information

Item	Details
Product Name	3-Phenoxypropyldimethylchlorosilane
CAS No.	69733-73-9
Molecular Formula	C₁₁H₁₇ClOSi
Molecular Weight	228.79 g/mol
Synonyms	Chlorodimethyl(3-phenoxypropyl)silane; Dimethyl(3-phenoxypropyl)chlorosilane; (3-Phenoxypropyl)dimethylchlorosilane; 3-Phenoxypropyldimethylsilyl chloride; (Dimethylchlorosilyl)-3-phenoxypropane; γ-Phenoxypropyldimethylchlorosilane; NCI 3-Phenoxypropylchlorodimethylsilane
EINECS	Contact for details

Quality Control

Every batch of 3-Phenoxypropyldimethylchlorosilane is manufactured and tested under a strict quality management system. We ensure high purity and consistency through comprehensive analytical methods including GC, NMR, and titration. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee it meets your specific application requirements.

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). Due to its moisture-sensitive and hygroscopic nature, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chlorosilane Content	≥ 98.0% (by titration)
Density (at 20°C)	~1.03 g/mL
Refractive Index (n20D)	~1.485

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