Site of Reactivity Models Predict Molecular Reactivity of Diverse Chemicals with Glutathione Chemical Research in Toxicology Problem 2: N acetyl para benzoquinone (NAPQI) is an oxidized metabolite of acetaminophen formed in the liver. NAPQI is converted into an acetaminophen glutathione conjugate, a non toxic metabolite NAPQI Wikipedia Did you know that high doses of paracetamol can be toxic to your liver? Paracetamol, also known as acetaminophen, is a commonly used painkiller that can have harmful effects on the body What Are the Potential Sites of Protein Arylation by N Acetyl p benzoquinone Imine (NAPQI)? Chemical Research in Toxicology