Mesalazine EP Impurity S

2-hydroxy-5-[(2-carboxy-4-aminophenyl)amino]benzoic acid.. ;|2-hydroxy-5-[(2-carboxy-4-aminophenyl)amino]benzoic acid.. ; Mesalamine EP Impurity S|2-Hydroxy-5-amino-N-(2-carboxy-4-aminophenyl)benzoic Acid|2-Hydroxy-5-Amino-N-(2-carboxy-4-aminophenyl)benzoic Acid;|5-amino-2-((3-carboxy-4-hydroxyphenyl)amino)benzoic acid;|Mesalazine impurity S|N-(2-carboxy-4-aminophenyl)-5-aminosalicylic Acid;