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Trichloro(isobutyl)silane

Also known as: Isobutyltrichlorosilane, Trichloroisobutylsilane, trichloro(2-methylpropyl)silane, 2-methylpropyltrichlorosilane, i-Butyltrichlorosilane, i-C4H9SiCl3, Silane, trichloro(2-methylpropyl)-, MFCD00053185, EINECS 242-053-4

Trichloro(isobutyl)silane (CAS 18169-57-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H9Cl3Si and a molecular weight of 191.559 g/mol. Key properties include a boiling point of 140.9±8.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 48.1±13.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18169-57-8
Jingsj CID
J-1511638-8
Molecular Formula
C4H9Cl3Si
Molecular Weight
191.559 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point140.9±8.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point48.1±13.1 °C
Exact Mass189.953903
LogP5.60
Vapor Pressure7.5±0.3 mmHg at 25°C
Refractive Index1.444
Storage ConditionsFlammables area

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 Trichloro(isobutyl)silane?

The CAS number of Trichloro(isobutyl)silane is 18169-57-8.

What are the molecular formula and molecular weight of Trichloro(isobutyl)silane?

Trichloro(isobutyl)silane has molecular formula C4H9Cl3Si and molecular weight 191.559 g/mol.

What are the upstream and downstream products of Trichloro(isobutyl)silane?

For Trichloro(isobutyl)silane, Upstream Products: Isobutylene, Trichlorosilane, 1-Bromo-2-methylpropane; Downstream Products: Dichlorobis(2-methylpropyl)silane.

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

Last updated:

How to cite: Jingsj. "Trichloro(isobutyl)silane (CAS 18169-57-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511638-8 (accessed 2026-11-09).

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