1 SAS 2-hydroxy-(5-([4-(2-pyridinylamino)sulfonyl]phenyl)azo)benzoic acid 1.000 2 EGE 4-azanyl-2-oxidanyl-5-[(~{E})-[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic acid 0.966 3 435 4-[(E)-(4-hydroxy-3,5-dimethylphenyl)diazenyl]-N-(pyridin-2-yl)benzenesulfonamide 0.897 4 NUD 4-[(E)-(2-amino-4-hydroxy-5-methylphenyl)diazenyl]-N-(pyridin-2-yl)benzenesulfonamide 0.897 5 NUE 4-[(E)-(2-amino-4-hydroxy-3,5-dimethylphenyl)diazenyl]-N-(pyridin-2-yl)benzenesulfonamide 0.867