1,1,3,3-Tetramethyldisiloxane
1,1,3,3-Tetramethyldisiloxane (CAS: 3277-26-7), with the molecular formula [(CH3)2SiH]2O and a molecular weight of 134.32 g/mol, is a volatile organosilicon compound. It is characterised by its Si-H bonds, making it a valuable precursor in organosilicon chemistry. This disiloxane serves as a key intermediate in chemical synthesis, particularly for the preparation of silicones and organosilicon polymers.
- Synonyms
- 3-Tetramethyldisiloxane3277-26-7[(CH3)2SiH]2O
![1,1,3,3-Tetramethyldisiloxane ([(CH3)2SiH]2O) — chemical structure, CAS 3277-26-7; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F3277-26-7.png&w=3840&q=75)
Chemical Synthesis
1,1,3,3-Tetramethyldisiloxane acts as a versatile building block in organic and organometallic synthesis. Its reactive Si-H bonds allow for hydrosilylation reactions and the introduction of dimethylsiloxy units into various molecular structures.
Polymer Science
It is employed in the synthesis of specialized siloxane polymers and copolymers. These materials often exhibit unique thermal, mechanical, and surface properties suitable for advanced material applications.
Reagent in Organosilicon Chemistry
This compound is a useful reagent for introducing Si-H functionalities or for modifying surfaces and materials with organosilicon moieties. Its controlled reactivity makes it suitable for specific synthetic pathways.
| Molecular weight | 134.32 |
|---|---|
| Linear formula | [(CH3)2SiH]2O |
| Assay | ≥97.0% (GC) |
| Boiling point | 70-71 °C(lit.) |
| Density | 0.76 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.370(lit.)n20/D 1.370 |
Hazard statements
- H225Highly flammable liquid and vapour
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -26 °C / -14.8 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11-16 |
| Safety statements (S) | 16 |
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 1,1,3,3-Tetramethyldisiloxane primarily used for?
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1,1,3,3-Tetramethyldisiloxane is primarily used as a precursor and intermediate in chemical synthesis, particularly within organosilicon chemistry and for the preparation of specialized siloxane polymers.
What is the CAS number and chemical formula for 1,1,3,3-Tetramethyldisiloxane?
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The CAS number for 1,1,3,3-Tetramethyldisiloxane is 3277-26-7, and its linear chemical formula is [(CH3)2SiH]2O.
What grade and purity does Tech Serve Solutions supply for 1,1,3,3-Tetramethyldisiloxane?
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Tech Serve Solutions supplies 1,1,3,3-Tetramethyldisiloxane with a purity of ≥97.0% (GC). We do not represent this product as USP, BP, or EP grade.
How should 1,1,3,3-Tetramethyldisiloxane be handled safely?
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1,1,3,3-Tetramethyldisiloxane is highly flammable (H225) and should be handled with extreme caution, away from ignition sources, using appropriate personal protective equipment including eyeshields, gloves, and respiratory protection as indicated by GHS classifications. It requires careful storage and handling procedures.
Is 1,1,3,3-Tetramethyldisiloxane available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 1,1,3,3-Tetramethyldisiloxane, adhering to all necessary shipping and regulatory requirements.
How can I request a sample or quote for 1,1,3,3-Tetramethyldisiloxane?
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To request a sample or a quote for 1,1,3,3-Tetramethyldisiloxane, please use the contact form on our website or reach out to our sales department directly.
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