Acetylsalicylic Acid EP Impurity B (Aspirin Impurity B)

Chemical Name: 4-Hydroxyisophthalic Acid; 4-Hydroxy-1,3-benzenedicarboxylic Acid; 4-Hydroxy-m-phthalic Acid; Eupirina; NSC 2445; USP Salicylic Acid Related Compound B;