Diethyldiethoxysilane
Also known as: Diethoxy(diethyl)silane, Diethoxydiethylsilane, DIETHYLDIETHOXYSILANE, DIETHOXYDIETHYLSILANE, EINECS 225-706-8
Diethyldiethoxysilane (CAS 5021-93-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H20O2Si and a molecular weight of 176.329 g/mol. Key properties include a melting point of <0ºC, a boiling point of 159.2±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 46.4±6.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 5021-93-2
- Jingsj CID
- J-1391206-6
- Molecular Formula
- C8H20O2Si
- Molecular Weight
- 176.329 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <0ºC |
|---|---|
| Boiling Point | 159.2±8.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 46.4±6.0 °C |
| Exact Mass | 176.123260 |
| PSA | 18.46000 |
| LogP | 1.67 |
| Vapor Pressure | 3.3±0.3 mmHg at 25°C |
| Refractive Index | 1.406 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Diethyldiethoxysilane?
The CAS number of Diethyldiethoxysilane is 5021-93-2.
What are the molecular formula and molecular weight of Diethyldiethoxysilane?
Diethyldiethoxysilane has molecular formula C8H20O2Si and molecular weight 176.329 g/mol.
What are the upstream and downstream products of Diethyldiethoxysilane?
For Diethyldiethoxysilane, Upstream Products: Tetraethyl orthosilicate, Chloroethane, Ethyltriethoxysilane; Downstream Products: Dichlorodiethylsilane, Ethoxytriethylsilane, Hexaethylcyclotrisiloxane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diethyldiethoxysilane (CAS 5021-93-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1391206-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.