英文别名(3Z)-6-oxo-5-[4-(pyridin-2-ylsulfamoyl)phenyl]-3-[[4-(pyridin-2-ylsulfamoyl)phenyl]hydrazinylidene]cyclohexa-1,4-diene-1-carboxylic acid; Sulfasalazine specified impurity E [EP]; 3-[p-(2-Pyridylsulfamoyl)phenyl]-5-[[p-(2-Pyridylsulfamoyl)phenyl]azo]salicylic Acid; 2-Hydroxy-3-[4-[(2-pyridinylamino)sulfonyl]phenyl]-5-[[4-[(2-pyridinylamino)sulfonyl]phenyl]azo]benzoic Acid; 2-Hydroxy-4'-(pyridin-2-ylsulfamoyl)-5-(2-(4-(pyridin-2-ylsulfamoyl)phenyl)diazenyl)biphenyl-3-carboxylic acid; Sulfasalazine Impurity E; 2-Hydroxy-4'-[(2-pyridinylamino)sulfonyl]-5-[2-[4-[(2-pyridinylamino)sulfonyl]phenyl]diazenyl][1,1'-biphenyl]-3-carboxylic acid; Sulfasalazine EP Impurity E; 2-hydroxy-3-[4-(pyridin-2-ylsulfamoyl)phenyl]-5-[[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic acid; 2-HYDROXY-4'-((2-PYRIDINYLAMINO)SULFONYL)-5-(2-(4-((2-PYRIDINYLAMINO)SULFONYL)PHENYL)DIAZENYL)(1,1'-BIPHENYL)-3-CARBOXYLIC ACID; 2-hydroxy-3-[4-(2-pyridylsulfamoyl)phenyl]-5-[4-(2-pyridylsulfamoyl)phenyl]azo-benzoic acid; 2-Hydroxy-4'-(N-(pyridin-2-yl)sulfamoyl)-5-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)-[1,1'-biphenyl]-3-carboxylic acid; Sulfasalazine Impurity 5(Sulfasalazine EP Impurity E); Sulfasalzine EP Impurity E 
