Mesalazine EP Impurity P

5-amino-2-hydroxy-3-(4-sulfophenyl)benzoic acid (3-(4-sulfophenyl)-5-aminosalicylic acid). ;|5-amino-2-hydroxy-3-(4-sulfophenyl)benzoic acid (3-(4-sulfophenyl)-5-aminosalicylic acid). ; Mesalamine EP Impurity P|5-amino-2-hydroxy-3-(4-sulfophenyl)benzoic acid;|5-amino-2-hydroxy-4-sulfobiphenyl-3-carboxylicacid;|5-amino-2-hydroxy-4'-sulfo-[1,1'-biphenyl]-3-carboxylic acid|5-amino-2-hydroxy-4'-sulfo-[1,1'-biphenyl]-3-carboxylic acid;|5-Amino-3-(4-sulfonylphenyl)salicyclic Acid;