trimethylsilyl isothiocyanate

异硫氰酸三甲基硅酯

Also known as: Isothiocyanatotrimethylsilane, Silane, isothiocyanatotrimethyl-, Trimethylsilyl isothiocyanate, MFCD00004797, EINECS 218-929-7

trimethylsilyl isothiocyanate (CAS 2290-65-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H9NSSi and a molecular weight of 131.27100 g/mol. It is also known as Isothiocyanatotrimethylsilane, Silane, isothiocyanatotrimethyl- and Trimethylsilyl isothiocyanate. Key properties include a melting point of −32.8 °C(lit.), a boiling point of 143 °C(lit.), a density of 0.931 g/mL at 25 °C(lit.) and a flash point of 95 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2290-65-5
Jingsj CID
J-6703-6
Molecular Formula
C4H9NSSi
Chinese Name
异硫氰酸三甲基硅酯
Molecular Weight
131.27100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−32.8 °C(lit.)
Boiling Point143 °C(lit.)
Density0.931 g/mL at 25 °C(lit.)
Flash Point95 °F

GHS Safety & Compliance

Flammable / Acute Toxicity / Health HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of trimethylsilyl isothiocyanate?

The CAS number of trimethylsilyl isothiocyanate is 2290-65-5.

What are the molecular formula and molecular weight of trimethylsilyl isothiocyanate?

trimethylsilyl isothiocyanate has molecular formula C4H9NSSi and molecular weight 131.27100 g/mol.

Is trimethylsilyl isothiocyanate hazardous?

trimethylsilyl isothiocyanate has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "trimethylsilyl isothiocyanate (CAS 2290-65-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6703-6 (accessed 2026-10-24).

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