1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane
1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane (CAS 2003-92-1), a siloxane derivative with the molecular formula C16H46O4Si4, is a chemical compound utilised in various synthesis applications. With a molecular weight of 458.99 g/mol, this organosilicon compound serves as a valuable building block or reagent in specialised chemical research and development, particularly within organosilicon chemistry.
- Synonyms
- 3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane

Chemical Synthesis Intermediate
This compound functions as an intermediate in complex organic and organosilicon synthesis pathways. Its siloxane structure allows for unique reactivity in the creation of advanced materials and specialised molecules.
Research and Development Reagent
Utilised in laboratory settings for R&D purposes, it aids chemists in exploring novel synthetic routes and developing new chemical entities. Its specific structure lends itself to studies in polymer chemistry and material science.
Organosilicon Chemistry Applications
As a siloxane, it is relevant in the field of organosilicon chemistry, potentially contributing to the development of silicon-containing polymers, coatings, or functional materials.
| Molecular weight | 458.99 |
|---|---|
| Linear formula | O[Si[OSi(CH3)3]2CH3]2 |
| Assay | 98% |
| Boiling point | 121 °C/10 mmHg(lit.) |
| Density | 0.885 g/mL at 25 °C(lit.) |
| Flash point | >110 °C / >230 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane primarily used for?
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This compound is primarily used as an intermediate in chemical synthesis and as a reagent in research and development, particularly within organosilicon chemistry.
What is the CAS number and chemical formula?
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The CAS number is 2003-92-1, and the linear chemical formula is O[Si[OSi(CH3)3]2CH3]2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product at a minimum purity of 98%. It is not supplied as USP, BP, or EP grade.
How should this chemical be handled and stored?
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This compound has a flash point above 110 °C (230 °F), indicating moderate flammability. Handle in a well-ventilated area, away from ignition sources. Refer to the Safety Data Sheet for comprehensive handling and storage instructions.
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents, including this product.
How can I request a sample or a quote?
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Please contact our sales team via the website or direct inquiry to request a sample or a quotation for this product.
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