acetonitrile

 
Pronunciation: /əˌsiːtə(ʊ)ˈnʌɪtrʌɪl, ˌasɪtəʊ-/

noun

[mass noun] Chemistry
  • an odoriferous toxic liquid, used as a solvent in high-performance liquid chromatography.
    • Alternative name: methyl cyanide; chemical formula: CH3CN