Description

(3-Cyanopropyl)Dimethylchlorosilane is a versatile organosilicon reagent featuring a reactive chlorosilyl group and a terminal nitrile functionality. This bifunctional nature makes it a critical intermediate for introducing cyanopropyl groups onto surfaces or into polymer backbones, enabling precise material modification. It is essential for manufacturers and R&D teams in the advanced materials, life sciences, and specialty chemical sectors seeking to engineer specific surface properties or create custom silane coupling agents.

Application

• Surface Modification Agent: Used as a precursor for creating self-assembled monolayers (SAMs) on silicon, glass, and metal oxides to alter surface energy, adhesion, and biocompatibility.
• Silane Coupling Agent: Acts as a molecular bridge to improve the bond between inorganic materials (like glass fibers or minerals) and organic polymers (like epoxies or polyimides) in composite materials.
• Intermediate for Specialty Silicones: Serves as a key building block in the synthesis of modified polysiloxanes and silicone resins with tailored properties for release coatings, surfactants, or elastomers.
• Chromatography Stationary Phases: Employed to derivatize silica gel for use in HPLC columns, particularly for reverse-phase and specialty separations leveraging the polar nitrile group.
• Pharmaceutical & Diagnostic Intermediates: Utilized in the synthesis of drug candidates, bioconjugation linkers, and probes where the nitrile can be further transformed into other functional groups (e.g., tetrazoles, amides).
• Nano-material Functionalization: Applied to modify nanoparticles (e.g., silica, quantum dots) to impart specific chemical functionality for dispersion, targeting, or sensing applications.

Basic Information

Product Name	(3-Cyanopropyl)Dimethylchlorosilane
CAS No.	18156-15-5
Molecular Formula	C6H12ClNSi
Molecular Weight	161.70 g/mol
Synonyms	Dimethyl(3-cyanopropyl)chlorosilane; 3-Cyanopropyldimethylchlorosilane; Chlorodimethyl(3-cyanopropyl)silane; (3-Cyanopropyl)chlorodimethylsilane; N-(3-Dimethylchlorosilylpropyl)cyanide; γ-Cyanopropyldimethylchlorosilane; CPCS; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our (3-Cyanopropyl)Dimethylchlorosilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). 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 decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, acids, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~0.99 g/mL
Refractive Index (n20D)	~1.442
Water Content (KF)	≤ 0.1%

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