英文别名5-amino-2-(3-carboxy-4-hydroxyanilino)benzoic acid; 2-Hydroxy-5-Amino-N-(2-carboxy-4-aminophenyl)benzoic Acid; Mesalazine EP Impurity S; N-(2-Carboxy-4-aminophenyl)-5-aminosalicylic acid; Mesalamine impurity S; 2-Hydroxy-5-((2-carboxy-4-aminophenyl)amino)benzoic acid; Benzoic acid, 5-amino-2-((3-carboxy-4-hydroxyphenyl)amino)-; 5-amino-2-[(3-carboxy-4-hydroxyphenyl)amino]benzoic acid; 2-Hydroxy-5-[(2-carboxy-4-aminophenyl)amino]benzoic Acid; 5-[(4-amino-2-carboxyphenyl)amino]-2-hydroxybenzoic acid; Mesalazine Impurity 11(Mesalazine EP Impurity S); Mesalamine Impurity (2-Hydroxy-5-amino-N-(2-carboxy-4-aminophenyl)benzoic Acid); Mesalazine Impurity 2; Mesalamine Impurity 2; Mesalamine EP Impurity S 
