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tert-Butyldimethylsilane

Also known as: Butyldimethylsilane, Dimethyl(2-methyl-2-propanyl)silane, Silane, (1,1-dimethylethyl)dimethyl-, t-Butyldimethylsilane, tert-Butyl(dimethyl)silane

tert-Butyldimethylsilane (CAS 29681-57-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H16Si and a molecular weight of 116.277 g/mol. Key properties include a melting point of 81-83 °C(lit.), a boiling point of 82.7±9.0 °C at 760 mmHg, a density of 0.701 g/mL at 25ºC(lit.) and a flash point of -22.8±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
29681-57-0
Jingsj CID
J-1328886-3
Molecular Formula
C6H16Si
Molecular Weight
116.277 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point81-83 °C(lit.)
Boiling Point82.7±9.0 °C at 760 mmHg
Density0.701 g/mL at 25ºC(lit.)
Flash Point-22.8±0.0 °C
Exact Mass116.102127
LogP3.30
Vapor Pressure86.6±0.1 mmHg at 25°C
Refractive Indexn20/D 1.4(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 tert-Butyldimethylsilane?

The CAS number of tert-Butyldimethylsilane is 29681-57-0.

What are the molecular formula and molecular weight of tert-Butyldimethylsilane?

tert-Butyldimethylsilane has molecular formula C6H16Si and molecular weight 116.277 g/mol.

What are the upstream and downstream products of tert-Butyldimethylsilane?

For tert-Butyldimethylsilane, Upstream Products: Chlorodimethylsilane, tert-Butyllithium, tert-Butyldimethylchlorosilane; Downstream Products: tert-Butyldimethylsilyl trifluoromethanesulfonate, Chlorodimethylsilane, tert-Butyldimethylchlorosilane.

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

Last updated:

How to cite: Jingsj. "tert-Butyldimethylsilane (CAS 29681-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1328886-3 (accessed 2026-11-09).

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