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1,1,1-Trimethyl-2,2,2-triphenyldisilane

Also known as: Disilane,1,1,1-trimethyl-2,2,2-triphenyl-, trimethyl(triphenylsilyl)silane, 1,1,1-Triphenyl-2,2,2-trimethyldisilane, tri(phenyl)-trimethylsilyl-silane, NSC 131576

1,1,1-Trimethyl-2,2,2-triphenyldisilane (CAS 1450-18-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H24Si2 and a molecular weight of 332.58600 g/mol. Key properties include a boiling point of 379.7ºC at 760mmHg, a density of 1g/cm3 and a flash point of 165.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1450-18-6
Jingsj CID
J-1405734-2
Molecular Formula
C21H24Si2
Molecular Weight
332.58600 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point379.7ºC at 760mmHg
Density1g/cm3
Flash Point165.8ºC
Exact Mass332.14200
LogP3.57340
Vapor Pressure1.26E-05mmHg at 25°C
Refractive Index1.565

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 1,1,1-Trimethyl-2,2,2-triphenyldisilane?

The CAS number of 1,1,1-Trimethyl-2,2,2-triphenyldisilane is 1450-18-6.

What are the molecular formula and molecular weight of 1,1,1-Trimethyl-2,2,2-triphenyldisilane?

1,1,1-Trimethyl-2,2,2-triphenyldisilane has molecular formula C21H24Si2 and molecular weight 332.58600 g/mol.

What are the upstream and downstream products of 1,1,1-Trimethyl-2,2,2-triphenyldisilane?

For 1,1,1-Trimethyl-2,2,2-triphenyldisilane, Upstream Products: Chlorotrimethylsilane, Chlorotriphenylsilane, Triphenylsilane; Downstream Products: Bromotrimethylsilane, Phenyltrimethylsilane, Tetraphenylsilane.

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

Last updated:

How to cite: Jingsj. "1,1,1-Trimethyl-2,2,2-triphenyldisilane (CAS 1450-18-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1405734-2 (accessed 2026-11-09).

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