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1,1,2,2-Tetramethyl-1,2-diphenyldisilane

Also known as: DIPHENYLTETRAMETHYLDISILANE, 1,2-DIPHENYL-1,1,2,2-TETRAMETHYLDISILANE, 1,2-DIPHENYLTETRAMETHYLDISILANE, 1,2-diphenyl-1,1,2,2-tetramethyldisilane, Disilane,1,1,2,2-tetramethyl-1,2-diphenyl-, Me2PhSiSiPhMe2, PhMe2Si-SiMe2Ph, Tetramethyldisilane-1,2-diyldibenzene, [dimethyl(phenyl)silyl]-dimethyl-phenylsilane, Benzene, 1,1'-(1,1,2,2-tetramethyl-1,2-disilanediyl)bis-

1,1,2,2-Tetramethyl-1,2-diphenyldisilane (CAS 1145-98-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C16H22Si2 and a molecular weight of 270.517 g/mol. Key properties include a melting point of 33-38ºC, a boiling point of 300.7±15.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 119.1±13.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1145-98-8
Jingsj CID
J-48099-9
Molecular Formula
C16H22Si2
Molecular Weight
270.517 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point33-38ºC
Boiling Point300.7±15.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point119.1±13.4 °C
Exact Mass270.126007
LogP6.01
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.521
Additional PropertyInsoluble in water.

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 1,1,2,2-Tetramethyl-1,2-diphenyldisilane?

The CAS number of 1,1,2,2-Tetramethyl-1,2-diphenyldisilane is 1145-98-8.

What are the molecular formula and molecular weight of 1,1,2,2-Tetramethyl-1,2-diphenyldisilane?

1,1,2,2-Tetramethyl-1,2-diphenyldisilane has molecular formula C16H22Si2 and molecular weight 270.517 g/mol.

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

Last updated:

How to cite: Jingsj. "1,1,2,2-Tetramethyl-1,2-diphenyldisilane (CAS 1145-98-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48099-9 (accessed 2026-11-09).

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