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The structures of typical antioxidants and some of their TPs ((a–h) are for amine antioxidants, (i–k) are for phenolic antioxidants, (l–p) are for heterocyclic antioxidants, (q,r) are for phosphite antioxidants, (s) is for nickel salts antioxidants, (A–E) are for TPs, the red parts represent the similar structure of the same type of antioxidants).
