Definition of sulfonyl in US English:


(British sulphonyl)


  • as modifier Of or denoting a divalent radical, —SO₂—, derived from a sulfonic acid group.

    • ‘Methyl sulfonyl methane is a source of organic sulfur, an important component of disulfide bonds in the laminae.’
    • ‘Phenyl methyl sulphonyl fluoride was added to the cell lysate and the lysate stored on ice until use.’
    • ‘He says that it was established that the position of the substituents on the thiophene ring was not crucial, but that methyl sulphonyl substitution at the 4 position on the phenyl ring was essential.’
    • ‘Cells were placed on ice, rinsed twice with cold phosphate-buffered saline and then lysed with 10 mM Tris-HCI, pH 7.4, containing phenylmethane sulfonyl fluoride and protease inhibitor cocktail for 20 min.’
    • ‘It is our intent here to illustrate this mechanistic similarity by reviewing the mechanism of the most widely utilized organic osmolyte, the sulfonyl amino acid, taurine.’