Definition of isobutyl in English:

isobutyl

noun

Chemistry
  • [as modifier] Of or denoting the alkyl radical —CH2CH(CH3)2, derived from isobutane.

    • ‘I have done a bit of homespun research of my own into this group of compounds, of which there are five: butyl, ethyl, isobutyl, methyl and propyl paraben.’
    • ‘The carboxylic acid group of the drug is first reacted with an activated carbonyl group like that found on isobutyl chloroformate.’
    • ‘There are two possible arrangements of the atoms in the butyl group, which means there are two isomers: n-butyl and isobutyl.’
    • ‘Two ketones (methyl isobutyl ketone and 5-ethyl cyclopentanone) were also identified.’
    • ‘Inhalation of amyl nitrite, as well as isobutyl nitrite, purportedly enhances sexual pleasure and produces euphoria.’

Pronunciation:

isobutyl

/ˌʌɪsəʊˈbjuːtʌɪl/