Ethyldimethylsilane
Also known as: Dimethylethylsilane, Ethyl(dimethyl)silane, Silane, ethyldimethyl-, ethyl(dimethyl)silicon, ethyl-dimethylsilicon, ethyldimethyl-silan, DK387, DK388, MFCD00009016, EINECS 212-061-2
Ethyldimethylsilane (CAS 758-21-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H12Si and a molecular weight of 88.224 g/mol. Key properties include a boiling point of 45.0±0.0 °C at 760 mmHg, a density of 0.668 g/mL at 25ºC(lit.) and a flash point of -46.7±3.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 758-21-4
- Jingsj CID
- J-1359639-9
- Molecular Formula
- C4H12Si
- Molecular Weight
- 88.224 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Boiling Point | 45.0±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.668 g/mL at 25ºC(lit.) |
| Flash Point | -46.7±3.4 °C |
| Exact Mass | 88.070824 |
| LogP | 2.60 |
| Vapor Pressure | 367.8±0.0 mmHg at 25°C |
| Refractive Index | n20/D 1.378(lit.) |
Frequently Asked Questions
What is the CAS number of Ethyldimethylsilane?
The CAS number of Ethyldimethylsilane is 758-21-4.
What are the molecular formula and molecular weight of Ethyldimethylsilane?
Ethyldimethylsilane has molecular formula C4H12Si and molecular weight 88.224 g/mol.
What are the upstream and downstream products of Ethyldimethylsilane?
For Ethyldimethylsilane, Upstream Products: Chlorodimethylsilane, Chlorodimethylethylsilane, Diethylmethylsilane; Downstream Products: n-propylbenzene, 1,3-diethyl-1,1,3,3-tetramethyldisiloxane, 4-Methoxydiphenylmethane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyldimethylsilane (CAS 758-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359639-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.