Tris(isopropylthio)silane

三(异丙基硫代)硅烷

Also known as: (S-i-pr)3SiH, MFCD00192562, Silane, tris[(1-methylethyl)thio]-, TRIS(ISOPROPYLTHIO)SILANE, TRIS(ISOPROPYLTHIO)SILANE, TECH., Tris-isopropylmercapto-silan, tris-isopropylsulfanyl-silane

Tris(isopropylthio)silane (CAS 17891-55-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H22S3Si and a molecular weight of 254.55100 g/mol. It is also known as (S-i-pr)3SiH, MFCD00192562 and Silane, tris[(1-methylethyl)thio]-. Key properties include a boiling point of 130ºC6 mm Hg(lit.), a density of 0.986 g/mL at 25ºC(lit.) and a flash point of 119 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17891-55-3
Jingsj CID
J-563-4
Molecular Formula
C9H22S3Si
Chinese Name
三(异丙基硫代)硅烷
Molecular Weight
254.55100 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point130ºC6 mm Hg(lit.)
Density0.986 g/mL at 25ºC(lit.)
Flash Point119 °F

Frequently Asked Questions

What is the CAS number of Tris(isopropylthio)silane?

The CAS number of Tris(isopropylthio)silane is 17891-55-3.

What are the molecular formula and molecular weight of Tris(isopropylthio)silane?

Tris(isopropylthio)silane has molecular formula C9H22S3Si and molecular weight 254.55100 g/mol.

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

Last updated:

How to cite: Jingsj. "Tris(isopropylthio)silane (CAS 17891-55-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-563-4 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.