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1,2-bis(trimethoxysilyl)ethane

Also known as: bis(trimethoxysilyl)ethane, 1,2-bis(trimethoxysilyl)ethane, 1,2-ethylenebis(trimethoxysilane), ethylene bis(trimethoxysilane), hexamethoxydisilylethane, BTMSE, 3,3,6,6-tetramethoxy-2,7-dioxa-3,6-disilaoctane, MFCD00053672, EINECS 242-285-6

1,2-bis(trimethoxysilyl)ethane (CAS 18406-41-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H22O6Si2 and a molecular weight of 270.428 g/mol. Key properties include a melting point of <0ºC, a boiling point of 206.4±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 66.7±23.0 °C. It is classified under GHS with signal word Danger and hazard statements H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
18406-41-2
Jingsj CID
J-45081-7
Molecular Formula
C8H22O6Si2
Molecular Weight
270.428 g/mol
Category
Aliphatic Hydrocarbons
Last updated
11/3/2026

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Physicochemical Properties

Melting Point<0ºC
Boiling Point206.4±23.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point66.7±23.0 °C
Exact Mass270.095490
PSA55.38000
LogP0.36
Vapor Pressure0.3±0.4 mmHg at 25°C
Refractive Index1.410

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H330 — Fatal if inhaled

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 1,2-bis(trimethoxysilyl)ethane?

The CAS number of 1,2-bis(trimethoxysilyl)ethane is 18406-41-2.

What are the molecular formula and molecular weight of 1,2-bis(trimethoxysilyl)ethane?

1,2-bis(trimethoxysilyl)ethane has molecular formula C8H22O6Si2 and molecular weight 270.428 g/mol.

Is 1,2-bis(trimethoxysilyl)ethane hazardous?

1,2-bis(trimethoxysilyl)ethane has GHS signal word Danger and hazard statements H330 — Fatal if inhaled.

What are the upstream and downstream products of 1,2-bis(trimethoxysilyl)ethane?

For 1,2-bis(trimethoxysilyl)ethane, Upstream Products: 1,2-Bis(trichlorosilyl)ethane, Sodium methoxide, Methanol.

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

Last updated:

How to cite: Jingsj. "1,2-bis(trimethoxysilyl)ethane (CAS 18406-41-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45081-7 (accessed 2026-11-09).

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