1 0S0 4-[(E)-(6-hydroxy-2-oxo-1,2-dihydropyridin-3-yl)diazenyl]benzenesulfonamide 1.000 2 4WA 4-[(E)-(4-aminophenyl)diazenyl]benzenesulfonamide 0.773 3 L85 4-[(E)-(4-hydroxyphenyl)diazenyl]benzenesulfonic acid 0.773 4 106 4-[(2z)-2-(5-bromo-2-oxo-1,2-dihydro-3h-indol-3-ylidene)hydrazinyl]benzene-1-sulfonamide 0.720