Definition of thiol in English:



  • An organic compound containing the group —SH, i.e. a sulphur-containing analogue of an alcohol.

    Also called mercaptan
    • ‘The majority of the essential element, sulphur, in living organisms is in the reduced form of organic thiols, such as the amino acids cysteine and methionine.’
    • ‘The samples were subject to two cycles of freezing/thawing and low molecular weight thiols were recovered in the supernatants after centrifugation at 12 000 g, 10 min at room temperature.’
    • ‘Chemically, thiols occur readily in petroleum processes such as distillation.’
    • ‘Reduction of hexavalent chromium seems to be driven by ascorbate and low molecular weight thiols, whereas the major DNA adducts formed are ternary complexes of chromium and amino acids and glutathione.’
    • ‘It is not yet known why we are so sensitive to thiols compared to their alcohol equivalents.’