5-Norbornen-2-yl(ethyl)chlorodimethylsilane, mixture of endo and exo

CAS 120543-78-4C11H19ClSiMicro / NanoElectronics

5-Norbornen-2-yl(ethyl)chlorodimethylsilane, mixture of endo and exo (CAS: 120543-78-4) is a organosilicon compound with a molecular weight of 214.81 g/mol. This chemical serves as a valuable intermediate and monomer in materials science, particularly in the development of advanced lithography materials and etch-resistant polymers. Its unique structure lends itself to applications requiring precise control over material properties in microelectronics and nanotechnology.

Synonyms: C11H19ClSi

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5-Norbornen-2-yl(ethyl)chlorodimethylsilane, mixture of endo and exo (C11H19ClSi) — chemical structure, CAS 120543-78-4; Materials Science, fine chemical supplied by Tech Serve Solutions

Lithography MonomersMaterials ScienceMicro/NanoElectronicsNanomaterialsPOSS Intermediates

01 /Applications

Lithography Monomers

This compound is utilised as a monomer in the formulation of photoresists for advanced lithography techniques. Its structure allows for the creation of materials with specific etch resistance properties, crucial for semiconductor manufacturing.

Materials Science Research

It functions as a building block for novel polymers and nanomaterials. Researchers leverage its alicyclic and silane functionalities to tailor material properties for diverse high-performance applications.

Micro/Nanoelectronics Fabrication

The chemical's characteristics make it suitable for processes in micro and nanoelectronics, contributing to the development of advanced circuitry and devices through specialised material integration.

POSS Precursor and Intermediate

This silane serves as a precursor or intermediate in the synthesis of Polyhedral Oligomeric Silsesquioxanes (POSS) nanohybrids. These materials offer unique thermal and mechanical properties for advanced composites and coatings.

02 /Properties

Molecular weight	214.81
Empirical formula	C11H19ClSi
Assay	95%
Boiling point	231-232 °C(lit.)
Density	0.991 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.48(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	104 °C / 219.2 °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

120543-78-4

MDL number

MFCD03094012

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 5-Norbornen-2-yl(ethyl)chlorodimethylsilane used for?

This chemical is used as a monomer in lithography, a building block in materials science for polymers and nanomaterials, and as a precursor in the synthesis of POSS nanohybrids for applications in microelectronics and advanced materials.

What is the CAS number and formula for this compound?

The CAS number is 120543-78-4, and its empirical formula (Hill notation) is C11H19ClSi.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this chemical with a minimum assay of 95%. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades.

How should 5-Norbornen-2-yl(ethyl)chlorodimethylsilane be handled safely?

This compound is classified as Danger and causes severe skin burns and eye damage (H314). Appropriate personal protective equipment including face shields, gloves, and suitable respirators must be used. Handle in a well-ventilated area, following all safety precautions.

Is this chemical shipped internationally?

Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, and can ship this product internationally, adhering to all transport regulations (UN 2987, Class 8, PG II).

How can I request a sample or quote?

To request a sample or a quote, please contact our sales team through the TSS website or by calling our customer service line, referencing the product name and CAS number 120543-78-4.