Chemical Name: Acetylsalicylic Anhydride; Aspirin Impurity F, 2-(Acetyloxy)benzoic Acid 1,1’-Anhydride; Salicylic Acid Acetate Anhydride; 2-Acetoxybenzoic Anhydride; Aspirin anhydride; Contraflu; NSC 63848; NSC 80056; Pircan; Vigal; Acetylsalicylic Acid Impurity D;