Benzylchlorodimethylsilane

CAS 1833-31-4C6H5CH2Si(CH3)2ClChemical Synthesis

Benzylchlorodimethylsilane (CAS: 1833-31-4, Formula: C6H5CH2Si(CH3)2Cl, MW: 184.74) is a reactive organosilicon compound. It serves as a valuable intermediate in organic synthesis, particularly for introducing the benzyldimethylsilyl protecting group onto various functional groups. Its utility extends to the preparation of more complex silicon-containing molecules and materials.

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Benzylchlorodimethylsilane (C6H5CH2Si(CH3)2Cl) — chemical structure, CAS 1833-31-4; Chemistry, fine chemical supplied by Tech Serve Solutions

Chemical SynthesisSilicon-BasedSynthetic Reagents

01 /Applications

Protecting Group Chemistry

Benzylchlorodimethylsilane is employed to install the benzyldimethylsilyl (BnMe2Si) protecting group on alcohols and other nucleophilic functionalities. This group offers specific stability and cleavage characteristics, valuable in multi-step syntheses.

Organosilicon Synthesis

This reagent acts as a building block for the synthesis of novel organosilicon compounds. It facilitates the incorporation of benzyl and dimethylsilyl moieties into target molecular architectures.

Derivatization Agent

It can be used as a derivatizing agent in analytical chemistry to modify compounds for improved detection or separation, for example, in gas chromatography.

02 /Properties

Molecular weight	184.74
Linear formula	C6H5CH2Si(CH3)2Cl
Assay	97%
Boiling point	101-103 °C/18 mmHg(lit.)
Density	1.018 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.511(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	73 °C / 163.4 °F
Transport (UN / ADR)	UN 2987 8 / PGII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1833-31-4

MDL number

MFCD00018089

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Benzylchlorodimethylsilane used for?

Benzylchlorodimethylsilane is primarily used as a reagent in organic synthesis for installing the benzyldimethylsilyl protecting group and as a building block for organosilicon compounds.

What are the CAS number and formula for Benzylchlorodimethylsilane?

The CAS number is 1833-31-4 and the linear formula is C6H5CH2Si(CH3)2Cl.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Benzylchlorodimethylsilane with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.

How should Benzylchlorodimethylsilane be handled?

Benzylchlorodimethylsilane is classified as Danger (GHS05) and causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including gloves, goggles, and face shields, must be worn. Handle in a well-ventilated area and consult the Safety Data Sheet for detailed handling procedures.

How is Benzylchlorodimethylsilane packed and shipped?

This product is shipped as UN 2987, Class 8, Packing Group II, meeting stringent international transport regulations. Packaging is designed to maintain product integrity and safety during export.