英文别名2-Hydroxy-3,5-bis((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic acid; (5E)-6-oxo-3-[[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]-5-[[4-(pyridin-2-ylsulfamoyl)phenyl]hydrazinylidene]cyclohexa-1,3-diene-1-carboxylic acid; 2-Hydroxy-3,5-bis(2-(4-(pyridin-2-ylsulfamoyl)phenyl)diazenyl)benzoic acid; Sulfasalazine specified impurity B [EP]; 2-hydroxy-3,5-bis[[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic acid; Sulfasalazine Impurity B; 2-hydroxy-3,5-bis((E)-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic acid; 2-Hydroxy-3,5-bis[2-[4-[(2-pyridinylamino)sulfonyl]phenyl]diazenyl]-benzoic acid; SULFASALAZINE IMPURITY B [EP IMPURITY]; Benzoic acid, 2-hydroxy-3,5-bis[2-(4-((2-pyridinylamino)sulfonyl)phenyl)diazenyl]-; Salazopyridine EP Impurity B 
