when either glutathione cysteine or n-acetylcysteine were included in the reaction the thiols reduced the acetaminophen-derived radicals to generate thiyl radicals which were trapped with the spin trap 5,5-dimethyl-1-pyrroline-n-oxide ( dmpo ) and observed using epr spectroscopy .
C0010654
cysteine
C0001047
n-acetylcysteine