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Bis(trimethylsilyl) peroxide

Also known as: Dioxybis(trimethylsilane), Peroxybis(trimethylsilane), trimethyl(trimethylsilylperoxy)silane, Bis(trimethylsilyl) peroxide (contains hexamethyldisiloxane)

Bis(trimethylsilyl) peroxide (CAS 5796-98-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H18O2Si2 and a molecular weight of 178.377 g/mol. Key properties include a melting point of <0ºC, a boiling point of 124.6±23.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 20.5±23.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
5796-98-5
Jingsj CID
J-1339155-4
Molecular Formula
C6H18O2Si2
Molecular Weight
178.377 g/mol
Category
Organic Compounds
Last updated
11/3/2026

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Physicochemical Properties

Melting Point<0ºC
Boiling Point124.6±23.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point20.5±23.0 °C
Exact Mass178.084534
PSA18.46000
LogP3.40
Vapor Pressure15.3±0.2 mmHg at 25°C
Refractive Index1.395
Storage Conditionsbelow 5° C

Frequently Asked Questions

What is the CAS number of Bis(trimethylsilyl) peroxide?

The CAS number of Bis(trimethylsilyl) peroxide is 5796-98-5.

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

Bis(trimethylsilyl) peroxide has molecular formula C6H18O2Si2 and molecular weight 178.377 g/mol.

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

For Bis(trimethylsilyl) peroxide, Upstream Products: Chlorotrimethylsilane; Downstream Products: 2-Hydroxycyclohexan-1-one, 2-(Trimethylsilyl)benzothiazole, Butyltrimethylsilane.

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) peroxide (CAS 5796-98-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1339155-4 (accessed 2026-11-09).

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