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Bis(trimethylsilyl)methane

Also known as: Methylenebis(trimethylsilane), 2,4-Disilapentane, 2,2,4,4-tetramethyl-, 2,2,4,4-Tetramethyl-2,4-disilapentane, Di(trimethylsilyl)methane, trimethyl(trimethylsilylmethyl)silane, Silane, methylenebis[trimethyl-, Silane, 1,1'-methylenebis[1,1,1-trimethyl-, Bis-trimethylsilyl-methan, Hexa-Si-methyl-Si,Si'-methanediyl-bis-silane, MFCD00008275, EINECS 218-322-7

Bis(trimethylsilyl)methane (CAS 2117-28-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H20Si2 and a molecular weight of 160.405 g/mol. Key properties include a melting point of −71 °C(lit.), a boiling point of 134.1±13.0 °C at 760 mmHg, a density of 0.7±0.1 g/cm3 and a flash point of 12.8±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2117-28-4
Jingsj CID
J-40947-2
Molecular Formula
C7H20Si2
Molecular Weight
160.405 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−71 °C(lit.)
Boiling Point134.1±13.0 °C at 760 mmHg
Density0.7±0.1 g/cm3
Flash Point12.8±0.0 °C
Exact Mass160.110352
LogP4.39
Vapor Pressure10.1±0.2 mmHg at 25°C
Refractive Index1.397

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 Bis(trimethylsilyl)methane?

The CAS number of Bis(trimethylsilyl)methane is 2117-28-4.

What are the molecular formula and molecular weight of Bis(trimethylsilyl)methane?

Bis(trimethylsilyl)methane has molecular formula C7H20Si2 and molecular weight 160.405 g/mol.

What are the upstream and downstream products of Bis(trimethylsilyl)methane?

For Bis(trimethylsilyl)methane, Upstream Products: Chlorotrimethylsilane, [(Trimethylsilyl)methyl]magnesium chloride, (Chloromethyl)trimethylsilane; Downstream Products: Trimethylfluorosilane, Hexamethyldisilane, N,N-Bis(trifluoromethyl)hydroxylamine.

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

Last updated:

How to cite: Jingsj. "Bis(trimethylsilyl)methane (CAS 2117-28-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40947-2 (accessed 2026-11-09).

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