Trimethylsilyl iodide

Trimethylsilyl iodide (iodotrimethylsilane or TMSI) is an organosilicon compound with the chemical formula (CH3)3SiI. It is a colorless, volatile liquid at room temperature.

Trimethylsilyl iodide
Names
Preferred IUPAC name
Iodotri(methyl)silane
Other names
Iodotrimethylsilane; TMSI; TMS-I; Jung reagent
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.036.503
UNII
  • InChI=1S/C3H9ISi/c1-5(2,3)4/h1-3H3
    Key: CSRZQMIRAZTJOY-UHFFFAOYSA-N
  • InChI=1/C3H9ISi/c1-5(2,3)4/h1-3H3
    Key: CSRZQMIRAZTJOY-UHFFFAOYAB
  • I[Si](C)(C)C
Properties
C3H9ISi
Molar mass 200.094 g·mol−1
Appearance Clear colorless liquid
Density 1.406 g/mL
Boiling point 106–109 °C (223–228 °F; 379–382 K)
Hazards
Flash point −31 °C (−24 °F; 242 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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