noun

• Of or denoting the alkyl radical —C₃H₇, derived notionally from propane.

  Compare with isopropyl

  ‘The propyl group is a functional group derived from propane by the removal of a hydrogen atom.’

  More example sentences

  • ‘The family's common names follow the standard alkane hydrocarbon sequence: methyl paraben, ethyl paraben, propyl paraben, butyl paraben, etc.’
  • ‘Peak concentrations of propyl nitrate and butyl nitrate in south-central Kansas were 51 and 68 parts per trillion, respectively.’
  • ‘The first four alkyl groups are methyl, ethyl, propyl, and butyl, with the number of carbon atoms being one, two, three, and four respectively.’
  • ‘There are clear hints that it may be useful to combine the phenidone with methyl, ethyl, propyl, or isopropyl alcohol.’