2,4,6,8-Tetramethylcyclotetrasiloxane
2,4,6,8-Tetramethylcyclotetrasiloxane (CAS: 2370-88-9), with the molecular formula (HSiCH3O)4 and a molar mass of 240.51 g/mol, is an organosilicon compound. It is a clear, colourless liquid utilised as a precursor in materials science and micro/nanoelectronics manufacturing. Its properties make it suitable for chemical synthesis and vapour deposition processes, contributing to the development of advanced materials and components. TSS offers this compound for research and industrial applications.
- IUPAC
- 1,3,5,7-Cyclotetra(methylsiloxane),1,3,5,7-Tetramethylcyclotetrasiloxane,TMCTS
- Synonyms
- 8-Tetramethylcyclotetrasiloxane(HSiCH3O)41,3,5,7-CyclotetramethylsiloxaneTMCTS
Vapour Deposition Precursor
This siloxane serves as a precursor in Chemical Vapour Deposition (CVD) and Atomic Layer Deposition (ALD) processes. It is used to deposit silicon-containing thin films essential for microelectronic device fabrication.
Materials Science
In materials science, 2,4,6,8-Tetramethylcyclotetrasiloxane is employed in the synthesis of novel organosilicon materials. These materials can exhibit unique thermal, mechanical, and optical properties for advanced applications.
Chemical Synthesis
As an organosilicon reagent, it plays a role in various chemical synthesis pathways. Its specific reactivity allows for the introduction of methylsiloxane units into larger molecular structures.
| Molecular weight | 240.51 |
|---|---|
| Linear formula | (HSiCH3O)4 |
| Assay | ≥99.5%≥99.999% trace metals basis |
| Form | liquid |
| Boiling point | 134 °C(lit.) |
| Density | 0.986 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.387(lit.) |
| Melting point | −69 °C(lit.) |
| Storage temperature | 2-8°C |
Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 24 °C / 75.2 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
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 2,4,6,8-Tetramethylcyclotetrasiloxane used for?
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2,4,6,8-Tetramethylcyclotetrasiloxane is primarily used as a precursor in Chemical Vapour Deposition (CVD) and Atomic Layer Deposition (ALD) for creating silicon-containing thin films, and in materials science for synthesising novel organosilicon compounds.
What is the CAS number and formula for 2,4,6,8-Tetramethylcyclotetrasiloxane?
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The CAS number is 2370-88-9, and its linear formula is (HSiCH3O)4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions offers 2,4,6,8-Tetramethylcyclotetrasiloxane with an assay of ≥99.5% and ≥99.999% (trace metals basis). This product is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the safety and handling considerations for 2,4,6,8-Tetramethylcyclotetrasiloxane?
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This compound is a flammable liquid and vapour (H226) requiring careful handling. It has a flash point of 24 °C (75.2 °F). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, should be used. Storage at 2-8°C is recommended.
Is 2,4,6,8-Tetramethylcyclotetrasiloxane a controlled substance?
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The provided data does not indicate that 2,4,6,8-Tetramethylcyclotetrasiloxane is a controlled substance.
How is 2,4,6,8-Tetramethylcyclotetrasiloxane packed and shipped?
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This chemical is shipped as a UN 1993, Class 3, Packing Group III flammable liquid, adhering to relevant transportation regulations for export.
How can I request a sample or quote for 2,4,6,8-Tetramethylcyclotetrasiloxane?
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Please contact our sales team through the website to request a sample or a quotation for 2,4,6,8-Tetramethylcyclotetrasiloxane.
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