4-[(1-butyl-5-cyano-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridyl)azo]-N-(2-ethylhexyl)benzenesulphonamide

4-[(1-Butyl-5-cyano-1,2-dihydro-6-hydroxy-4-methyl-2-oxopyridin)-3-ylazo]-N-(2-ethylhexyl)benzenesulfonamide

4-[(1-butyl-5-cyano-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinyl)azo]-N-(2-ethylhexyl)-Benzenesulfonamide

Benzenesulfonamide,4-[(1-butyl-5-cyano-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinyl)azo]-N-(2-ethylhexyl)-