Dibutyldichlorosilane

二正丁基二氯硅烷

Also known as: Di-n-butyldichlorosilane, Dichlorodibutylsilane, Dibutyl(dichloro)silane, Silane, dibutyldichloro-, dibutyl(dichloro)silane, dichlorodibutylsilane

Dibutyldichlorosilane (CAS 3449-28-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H18Cl2Si and a molecular weight of 213.220 g/mol. It is also known as Di-n-butyldichlorosilane, Dichlorodibutylsilane and Dibutyl(dichloro)silane. Key properties include a melting point of <0ºC, a boiling point of 210.0±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 76.1±16.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3449-28-3
Jingsj CID
J-38964-0
Molecular Formula
C8H18Cl2Si
Chinese Name
二正丁基二氯硅烷
Molecular Weight
213.220 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point<0ºC
Boiling Point210.0±8.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point76.1±16.0 °C
Exact Mass212.055481
LogP6.37
Vapor Pressure0.3±0.4 mmHg at 25°C
Refractive Index1.438

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 Dibutyldichlorosilane?

The CAS number of Dibutyldichlorosilane is 3449-28-3.

What are the molecular formula and molecular weight of Dibutyldichlorosilane?

Dibutyldichlorosilane has molecular formula C8H18Cl2Si and molecular weight 213.220 g/mol.

What are the upstream and downstream products of Dibutyldichlorosilane?

For Dibutyldichlorosilane, Upstream Products: Butylmagnesium chloride, Butylmagnesium bromide, Tetrachlorosilane; Downstream Products: Dichlorodioctylsilane.

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

Last updated:

How to cite: Jingsj. "Dibutyldichlorosilane (CAS 3449-28-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38964-0 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.