1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane
1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane (CAS: 18420-09-2), with the molecular formula [C2H5OSi(CH3)2]2O and a molecular weight of 222.43 g/mol, is a versatile organosilicon compound. It serves as a key intermediate in chemical synthesis, particularly within materials science and micro/nanoelectronics. Its properties make it valuable in applications such as surface modification and as a precursor in the development of advanced materials.
- Synonyms
- 3,3-tetramethyldisiloxane, [C2H5OSi(CH3)2]2O
![1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane ([C2H5OSi(CH3)2]2O) — chemical structure, CAS 18420-09-2; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F18420-09-2.png&w=3840&q=75)
Chemical Synthesis Intermediate
This disiloxane functions as a valuable building block in organic and inorganic synthesis. Its reactive alkoxy and siloxy groups allow for further functionalisation and incorporation into more complex molecular structures.
Materials Science Precursor
It is utilised in materials science for the synthesis of specialised polymers and silicon-containing materials. The compound's structure can impart unique thermal and mechanical properties to the resulting materials.
Surface Modification Agent
1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane can be employed for modifying the surface properties of various substrates. Its ability to form stable bonds can alter hydrophobicity, adhesion, and other surface characteristics.
Micro/Nanoelectronics Applications
The compound finds utility in the microelectronics industry, potentially as a precursor for dielectric layers or other components in semiconductor manufacturing. Its organosilicon nature is beneficial for these advanced applications.
| Molecular weight | 222.43 |
|---|---|
| Linear formula | [C2H5OSi(CH3)2]2O |
| Assay | 97% |
| Boiling point | 161 °C(lit.) |
| Density | 0.883 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.389(lit.) |
Hazard statements
- H226Flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 43 °C / 109.4 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36/37/38 |
| Safety statements (S) | 16-26-36 |
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 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane used for?
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1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is used in chemical synthesis, materials science, and micro/nanoelectronics. It acts as an intermediate for creating specialised polymers and modifying surfaces.
What are the CAS number and chemical formula for 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane?
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The CAS number is 18420-09-2 and the linear chemical formula is [C2H5OSi(CH3)2]2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane be handled safely?
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This compound is flammable (flash point 43 °C) and an irritant. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation and keep away from ignition sources.
How is 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane packed and exported?
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Tech Serve Solutions offers expert packing and global export services for 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane, adhering to international shipping regulations for hazardous materials.
How can I request a quote or sample for 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane?
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To request a quote or sample, please contact our sales team via the website or provide your details through the product enquiry form.
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