3,5-diamino-2-hydroxybenzoic acid (3,5-diaminosalicylic acid).;|3,5-diamino-2-hydroxybenzoic acid (3,5-diaminosalicylic acid).; Mesalamine EP Impurity J|3,5-Diaminosalicylic acid|3,5-Diaminosalicylic Acid;|Mesalamine Impurity J DiHCl