Sulfasalazine

Sulfasalazine EP Impurity A Sulfasalazine Impurity A:

4,4′-[(4-Hydroxy-1,3-phenylene)bis(diazenediyl)]bis[N-(pyridin-2-yl)benzenesulfonamide] ;

C28H22N8O5S2 ; Mol. Wt.: 614.65 ;
Sulfasalazine EP Impurity B Sulfasalazine Impurity B:

2-Hydroxy-3,5-bis[2-[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic acid ;

C29H22N8O7S2 ; Mol. Wt.: 658.66 ;
Sulfasalazine EP Impurity C Sulfasalazine Impurity C:

2-Hydroxy-5-[2-[4-(2-iminopyridin-1-(2H)-yl)phenyl]diazenyl]benzoic acid ; CAS : 66030-25-9 ;C18H14N4O3 ; Mol. Wt.: 334.33 ;
Sulfasalazine EP Impurity D Sulfasalazine Impurity D:

4-[2-(2-Hydroxyphenyl)diazenyl]-N-(pyridin-2-yl)benzenesulfonamide ; CAS : 66364-70-3 ; C17H14N4O3S ; Mol. Wt.: 354.38 ;
Sulfasalazine EP Impurity E Sulfasalazine Impurity E:

2-Hydroxy-4′-(pyridin-2-ylsulfamoyl)-5-[2-[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl] biphenyl-3-carboxylic acid ; 3-[4-(2-Pyridylsulfamoyl)phenyl] Sulfasalazine ; CAS : 1391062-34-2 ; C29H22N6O7S2 ; Mol. Wt.: 630.65 ;
Sulfasalazine EP Impurity F Sulfasalazine Impurity F :

Sulfasalazine 3-Isomer ; 2-Hydroxy-3-[2-[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic acid ; CAS : 66364-71-4 ; C18H14N4O5S ; Mol. Wt.: 398.39 ;
Sulfasalazine EP Impurity G Sulfasalazine Impurity G:

5-[2-[4′,5-Bis(Pyridin-2-ylsulfamoyl)biphenyl-2-yl]diazenyl]-2-hydroxybenzoic acid ; 2�-[4-(2-Pyridylsulfamoyl)phenyl] Sulfasalazine ; CAS : 1391062-37-5 ; C29H22N6O7S2 ;Mol. Wt.: 630.65 ;
Sulfasalazine EP Impurity H Sulfasalazine Impurity H:

2-Hydroxybenzoic acid ; CAS : 69-72-7 ; C7H6O3 ; Mol. Wt.: 138.12 ;
Sulfasalazine EP Impurity I Sulfasalazine Impurity I:

2-Hydroxy-5-[2-(4-sulfophenyl)diazenyl]benzoic acid ;

C13H10N2O6S ; Mol. Wt.: 322.29 ;
Sulfasalazine EP Impurity J Sulfasalazine Impurity J:

Sulfapyridine ; 4-Amino-N-(pyridin-2-yl)benzenesulfonamide ; CAS : 144-83-2 ;C11H11N3O2S ; Mol. Wt.: 249.29 ;