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Diethylsilane

Also known as: Silane, diethyl-, 3-Silapentane, Diethylsilane, Diethyl-silan, Diethyl silane

Diethylsilane (CAS 542-91-6) 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 melting point of -132°C, a boiling point of 52.4±9.0 °C at 760 mmHg, a density of 0.681 g/mL at 25 °C(lit.) and a flash point of -14.5±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
542-91-6
Jingsj CID
J-1352760-1
Molecular Formula
C4H12Si
Molecular Weight
88.224 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-132°C
Boiling Point52.4±9.0 °C at 760 mmHg
Density0.681 g/mL at 25 °C(lit.)
Flash Point-14.5±18.7 °C
Exact Mass88.070824
LogP1.03160
Vapor Pressure279.3±0.1 mmHg at 25°C
Refractive Indexn20/D 1.391(lit.)

Customs & Trade Information

HS Code2931900090
Summary2931900090. 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 Diethylsilane?

The CAS number of Diethylsilane is 542-91-6.

What are the molecular formula and molecular weight of Diethylsilane?

Diethylsilane has molecular formula C4H12Si and molecular weight 88.224 g/mol.

What are the upstream and downstream products of Diethylsilane?

For Diethylsilane, Upstream Products: Dichlorodiethylsilane, Ethyllithium, Silicon; Downstream Products: N-Benzyl-N-phenylaniline, Diethyldiethoxysilane, Borane triethylamine complex.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Diethylsilane (CAS 542-91-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1352760-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.