Pentamethyldisiloxane
Pentamethyldisiloxane (CAS: 1438-82-0; Formula: C5H16OSi2; Molar Mass: 148.35 g/mol) is a versatile organosilicon compound. Characterised by its reactivity, it serves as a key intermediate in various chemical syntheses. Its applications span from the development of new materials to specialised organic transformations, making it a valuable reagent in research and industrial settings.
Chemical Synthesis
Pentamethyldisiloxane acts as a building block in the synthesis of more complex organosilicon compounds. It can be used to introduce the pentamethyldisiloxy group into various molecules.
Organometallic Reagent Precursor
It can serve as a precursor or reagent in reactions involving organometallic chemistry. Its siloxane structure offers unique reactivity profiles.
Material Science Research
Used in the development of novel silicon-based materials, polymers, and coatings where specific siloxane functionalities are required.
| Molecular weight | 148.35 |
|---|---|
| Empirical formula | C5H16OSi2 |
| Assay | ≥95.0% |
| Boiling point | 86 °C(lit.) |
| Density | 0.760 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.373 |
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 | -19 °C / -2.2 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| Safety statements (S) | 16-23-24/25 |
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 Pentamethyldisiloxane primarily used for?
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Pentamethyldisiloxane is primarily used as an intermediate in chemical synthesis, particularly in the field of organosilicon chemistry and material science research.
What are the CAS number and formula for Pentamethyldisiloxane?
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The CAS number for Pentamethyldisiloxane is 1438-82-0, and its empirical formula is C5H16OSi2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Pentamethyldisiloxane with an assay of ≥95.0%. We do not represent this product as USP, BP, or EP grade.
How should Pentamethyldisiloxane be handled safely?
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Pentamethyldisiloxane is a highly flammable liquid and vapour (H225). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area away from ignition sources.
Is Pentamethyldisiloxane a controlled substance?
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The provided data does not indicate that Pentamethyldisiloxane is a controlled substance.
How is Pentamethyldisiloxane packed and shipped?
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Pentamethyldisiloxane is classified under UN 1993, Flammable Liquid, n.o.s., Packing Group II, and is shipped according to relevant dangerous goods regulations.
How can I request a sample or quote for Pentamethyldisiloxane?
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To request a sample or quote, please contact our sales team through the TSS website or via the provided contact details.
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