2-[(Trimethylsilyl)ethynyl]thiophene

Also known as: Trimethyl(2-thienylethynyl)silane, trimethyl(thiophen-2-ylethynyl)silane, 2-(Trimethylsilylethynyl)thiophene, 1-trimethylsilyl-2-(2-thienyl)acetylene, trimethyl[2-(thiophen-2-yl)ethynyl]silane, Thiophene, 2-[(trimethylsilyl)ethynyl]-, Silane, trimethyl[2-(2-thienyl)ethynyl]-, MFCD03427125

2-[(Trimethylsilyl)ethynyl]thiophene (CAS 40231-03-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H12SSi and a molecular weight of 180.342 g/mol. Key properties include a boiling point of 203.6±22.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 77.0±22.3 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

40231-03-6

Jingsj CID

J-29174-7

Molecular Formula

C₉H₁₂SSi

Molecular Weight

180.342 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026