1,2-Bis(trichlorosilyl)ethane
1,2-Bis(trichlorosilyl)ethane (CAS 2504-64-5) is a silicon-containing organic compound with the molecular formula Cl3SiCH2CH2SiCl3 and a molecular weight of 296.94 g/mol. This bridged monomer serves as a critical precursor and intermediate in materials science, particularly for the synthesis of novel polymers and nanomaterials. Its unique structure facilitates its use in applications requiring advanced dielectric properties and in the development of organic electronics.
- IUPAC
- 1,1,1,4,4,4-Hexachlorodisilethylene
- Synonyms
- 1,1,1,4,4,4-Hexachlorodisilethylene

Precursor for POSS Synthesis
1,2-Bis(trichlorosilyl)ethane is a valuable precursor for the synthesis of Polyhedral Oligomeric Silsesquioxanes (POSS) and related nanohybrid materials. These materials find applications in enhancing the properties of polymers.
Materials Science and Nanomaterials
This compound is employed in materials science for the development of advanced nanomaterials. Its structure lends itself to the creation of materials with tailored properties for specialized applications.
Organic and Printed Electronics
As a component in organic electronics, 1,2-Bis(trichlorosilyl)ethane is utilised in the fabrication of devices such as Organic Field Effect Transistors (OFETs). It contributes to the development of new semiconducting materials.
Silane Coupling Agents
It can be considered for use as a silane coupling agent or adhesion promoter in composite materials, helping to improve the interface between organic polymers and inorganic fillers.
| Molecular weight | 296.94 |
|---|---|
| Linear formula | Cl3SiCH2CH2SiCl3 |
| Assay | 97% |
| Boiling point | 202 °C(lit.) |
| Density | 1.483 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.475(lit.) |
| Melting point | 27-29 °C(lit.) |

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 | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 65 °C / 149 °F |
| Transport (UN / ADR) | UN 3261 8 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 14-35 |
| Safety statements (S) | 26-36/37/39-43-45 |
| Supplemental hazards | Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is 1,2-Bis(trichlorosilyl)ethane used for?
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1,2-Bis(trichlorosilyl)ethane is primarily used as a precursor for POSS synthesis, in materials science for developing nanomaterials, and in organic and printed electronics for applications like OFETs. It may also function as a silane coupling agent.
What are the CAS number and formula for 1,2-Bis(trichlorosilyl)ethane?
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The CAS number is 2504-64-5, and the formula is Cl3SiCH2CH2SiCl3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,2-Bis(trichlorosilyl)ethane with an assay of 97%. This product is typically considered a research or technical grade chemical and is not represented as USP, BP, or EP.
How should 1,2-Bis(trichlorosilyl)ethane be handled safely?
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1,2-Bis(trichlorosilyl)ethane is a corrosive substance that reacts violently with water, releasing hazardous fumes. Handling requires stringent safety precautions, including appropriate personal protective equipment such as full-face protection, chemically resistant gloves, and respiratory protection. Work should be conducted in a well-ventilated area or fume hood. Refer to the Safety Data Sheet for comprehensive guidance.
How is 1,2-Bis(trichlorosilyl)ethane packed, shipped, and exported?
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Products are packed and shipped in compliance with international transport regulations for hazardous materials. Tech Serve Solutions, as a global supplier and exporter, ensures appropriate packaging and documentation for international destinations.
How can I request a sample or quote for 1,2-Bis(trichlorosilyl)ethane?
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To request a sample or a quotation, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
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